Showing posts with label Business E-mail Compromise. Show all posts
Showing posts with label Business E-mail Compromise. Show all posts

Thursday, February 28, 2019

Beware of Compromised Personal E-mail

Over the last few years personal e-mail providers like Yahoo and AOL have had massive data breaches, in which user's e-mail addresses and passwords were compromised.  Recently there have been a number of phishing campaigns whereby these compromised e-mail accounts are being used. 

How this works
So a Yahoo or AOL e-mail account owner who has never changed their password, and a hacker gains access to it (Most likely from a password list bought on the Dark Web).  The hacker then send a personalized e-mail to everyone in the compromised account owner's Address Book with a link to either collect credentials or launch malware.  The sad thing is some people have been getting these phishing e-mails from people close to them who have passed away.  Other's are getting e-mails from friends and relatives that seem legitimate and so the recipient innocently clicks on the link seeing that the e-mail is from someone they know.

Security Tip
Ask yourself these questions when you receive an e-mail:
  1. Do I know the sender?  (hover your cursor on the display name or click the display name to see the real e-mail address)
  2. Am I expecting this e-mail or any web links/attachments from this sender?
If you answer "No" to either question, it is probably a phishing e-mail.

If you know the sender, pick up the phone and verify that they sent you the e-mail and any attachments or web links.  Don't reply to the sender's e-mail as the hacker has control over the e-mail account.

In 2018, the number of malicious web links (URLs) sent by cyber criminals was more than twice as many as malicious attachments sent.

Think before you click!


In addition, if you have a Yahoo or AOL e-mail address and haven't changed your password in the last year,,,,CHANGE YOUR PASSWORD NOW!


Be Secure!

@TJMProfessional

Tuesday, October 16, 2018

Information Leakage - Using the Internet Judiciously

One of the best online resources for cyber criminals is Google.  While businesses seek to utilize their company website, Facebook, Twitter, LinkedIn, and the like for marketing and recruitment purposes, they are unintentionally leaking information that can be useful to cyber criminals.  At the same time, their employees are also guilty of both disclosing more details about their job duties as well as connecting to and friending people based on invites without any due diligence.

For businesses, below are some typical areas where internal information is disclosed:

Press Releases: Expanding your business?  Offering a new product?  That is great and something to brag about.  But pick and choose what details you make public.  Let's say you are offering a new product or service, and you bought a new piece of equipment to provide it, or have a new vendor to help you support it.  If possible, don't name business partners or describe any new additions of equipment by name.  While these details don't sound like anything of importance, internal details can be used in spear-phishing to gain the trust of your employees.  Let's say you name your new business supplier (XYZ Corp) in your press release.  A few weeks later an e-mail is sent to your accountant that appears to be from XYZ Corp saying they just changed banks and to use the below banking information to pay future invoices.  You figure out that it was a phishing e-mail when XYZ Corp starts calling you because of all the unpaid invoices, and now you are out the money.

Job Postings:  One of my pet peeves is all of the information you can glean from an organization's job postings.  An example is if your company is hiring a Database Administrator, you don't have to say in the posting "Must be experienced with MS SQL Server 2008 R2 Express"  This tells the public what version of your database you are running, and what security issues you may be vulnerable to.  Simply saying "Must be experienced with MS SQL Server" will suffice.

Vendor Endorsements: I never give public vendor recommendations (posted on the vendor's website).  Why?  Because I don't want anyone knowing too much about the inner workings of my business, such as my vendors.  The reason being is that a cyber criminal can use that relationship to try to spear phish either company.  Also, this may not be something you want your competitors to know about either.  If you have a really good vendor relationship and they want a recommendation, offer to give one-off personal recommendations.  Just don't put it out on the web for the world to see.

Website Contacts: If possible (granted it is a must for some industries), do not have a directory of your employee's names and contact information on your company website.  This is a treasure trove for cyber criminals for both phishing e-mails as well as scam phone calls.  Use generic contact e-mails in your Contact US sections such as sales@xyzcorp.com, or even better is a contact form that does not disclose company e-mail addresses.


Tips for your employees:

Social Media: Encourage your employees to leave their job duties generic when updating their LinkedIn profile or online resumes.  If you are an Accountant for a business, that is great.  You don't have to put on LinkedIn that you handle all of the business's banking, send wire transfers, or are familiar with Wells Fargo's business banking portal.  This is way too much information to be giving out to potential cyber criminals and can be utilized in a Business Email Compromise (BEC) or spear -phishing attack.  Save the details for the resume you submit to a potential employer.  The one you publicly post should be a summary.

Technology questions using company e-mail address: Technology folks will often visit tech blogs and websites soliciting information and knowledge regarding a problem they are trying to resolve.  This is all well and good, but sometimes they post detailed questions that disclose the names/versions of systems and applications using their company e-mail address, and therefore identifying the organization with the problem.  Information about current IT issues (whether security related or not) should not be publicly disclosed.  It's not something you want hackers to see, and it doesn't look good to current or future customers to see.

Be Secure!

@tjmprofessional

Thursday, October 4, 2018

How to Overcome Your E-mail Insecurity - Part 3 of 3

Phishing
Less complex than BEC, but even more widespread, phishing e-mails will usually come from free e-mail providers, ex. gmail, yahoo, outlook/hotmail, but will have a display name that is different than the actual e-mail in trying to gain your trust.  The e-mail is supposedly from DHL, UPS, DropBox, Microsoft, or some large company that you trust, but then you find out that the underlying e-mail address is not from that companies e-mail domain, but is a gmail account or a similar domain like DHL_Accountservices.com, etc.  

Some recent attacks actually impersonated domains to try and fool employees at the actual business.  An example is if your business e-mail domain is "marysdonuts,com", the impersonated e-mail domain might be rnarysdonuts.com, whereby the "m" is replaced with an "r" and an "n" to fool your eye into thinking it's a lower case "m".  Cyrillic alphabet characters have also been used to play tricks on your eyes.

Security Tip:  Like the BEC e-mails, there is a call to action, usually an attachment (virus infected) or a button/link to click. 

Ask yourself these questions when you receive an e-mail:
  1. Do I know the sender?  (hover your cursor on the display name or click the display name to see the real e-mail address)
  2. Am I expecting this e-mail or any attachments from this sender?
If you answer "No" to either question, it is probably a phishing e-mail. Again, if you do know the sender, pick up the phone and verify that they sent you the e-mail and any attachments. 

So the lesson at the end of the day, is if you want to be safe, and not be a victim of e-mail fraud, BEC, or phishing you should use the low tech communication device that was invented by Alexander Graham Bell and verify before taking action based on e-mailed instructions.  After all, as discussed in my Part 1 blog post, e-mail is not secure by design.

Be Secure!

@tjmprofessional


Tuesday, September 11, 2018

How to Overcome Your E-mail Insecurity - Part 2 of 3

Business E-mail Compromise (BEC)
For the last two years this has been a growing threat to small businesses.  It is a phishing e-mail, whereby the hacker poses someone of authority, your boss, the CEO, the CFO, the IRS, etc. and asks you to send either your employees HR data, ex. W-2 information, customer information, send money or buy gift cards.  The things to look for in identifying a BEC attempt is:
  • Usually sent off hours or right before you are about to leave for the day.
  • Has the appearance of being from someone you know, work with, or government agency, but is usually from a g-mail, yahoo, or some other free e-mail domain and not a business domain.
  • Has a sense of urgency, and asking you to take immediate action.
  • May be written in odd English or European style English.
  • The message in the e-mail is usually short and to the point, and may be trying to start a conversation to gain your trust.  E-mail #1 might say "Are you in the office?"  Which will cause you to respond "Yes", then E-mail #2 says "Great, I need you to send (money, gift cards, data) urgently.  More likely than not will have the word "Kindly" as in "Kindly send,,,".
  • The e-mail will probably be asking you to do something out of the ordinary. (This is where the red flashing lights should start going off in your head)
Security Tip: Always pick up the phone and call a number (that you already have on file) and verify with the person sending the e-mail is who you think it is and not a hacker.  As for the IRS,,they will never e-mail you asking for anything.  They used certified/registered mail for official business.

A good rule of thumb is, if an e-mail seems strange, or is requesting something that is not normal procedure, it's probably a scam.


Be Secure!

@tjmprofessional

Thursday, September 6, 2018

How to Overcome Your E-mail Insecurity - Part 1 of 3

As a small business owner you probably have a lot of things keeping you up at night.  Your use of E-mail in doing business probably wasn't one of them, until you read this post.

E-mail was not designed to be secure.  It was created to be a simple electronic messaging platform for trusted networked computers back in the late 1960's, and grew in use during the 1990's.  It eventually replaced both the telephone and the fax machine as the primary communication medium for business in the 2000's.  Its security flaw of being "trusted" remains from its original 1960's design, and is what has also made it the preferred attack vector for cyber criminals to defraud both individuals and businesses.  Rather than dwell on what we can't change, let's focus on what we can.

The E-mail Interloper
Over the last year a very popular type of e-mail hacking has been targeting attorneys, loan officers, and realtors. (Although there have been similar scams with vendor payments and payroll provider settlements)  A hacker compromises one of these party's e-mail accounts.  Rather than make their presence known, they will just sit back and read through the person's e-mails and wait for the right situation to arise, usually a real estate transaction.  Once the hacker knows the particulars of the deal, they wait until the time of closing and then send an e-mail from the compromised party's e-mail account stating to the buyer or the buyer's agent that the wiring instructions for the settlement has changed and to use the new bank routing and account number to transfer the proceeds of the transaction.  The buyer then sends the wire to the hacker's bank, and by the time all the parties figure out what has occurred, the hacker has since moved the money to several other banks and eventually wires the funds to an overseas bank and "poof" hundreds of thousands, potentially millions are gone.  If that wasn't bad enough, now everyone gets lawyer-ed up to try and figure out who is at fault, and the real mess begins.  Regardless of whether you are the buyer, seller, a real estate agent, or attorney, this can be a business nightmare as both the money and the deal are gone.

Security Tip: If you are in the real estate business, or another business where you frequently send wires to different parties, always pick up the phone and call a number (that you already have on file) and verify with the receiving party the wiring instructions before sending the funds.  A simple five minute phone call will defeat an e-mail take over scam, and will also demonstrate to your customers and business partners that you take security and doing business with them seriously.  If your clients are the ones sending funds, remind them to do this one simple thing to protect themselves, and your commission.


Be Secure!


@tjmprofessional

Saturday, August 25, 2018

Phishing is not a Technology Problem

In reading the title of this post, IT folks all around the world are shouting at the top of their lungs; "Amen!".

While perhaps not a profound statement for the IT community, it is however a true statement that phishing is not an IT risk, but it is a Business risk.  Phishing is about social engineering or the use of trickery and deception through the utilization of technology as a delivery platform to coerce your employees into e-mailing mass HR or customer data, give up their password, or send money to the criminal posing as a company executive, government official or a vendor.  Therefore it is the social engineering aspect that needs to be addressed, but rarely is.  Hence, why Phishing is very effective, very profitable, and the volume and complexity of attacks are growing at a rapid pace.

The security software and appliance providers keep upping the ante with the latest technology tools (now AI) to detect or block phishing e-mails, but at the end of the day, this is just a holding action, not a sustainable solution as it is not 100% effective.  The root cause is still sitting one foot in front of the keyboard.  It is your employees and contracted staff that make phishing attacks possible.  And this is where the least amount of budget and time are spent on reducing your organization's risk of being phished.

Security experts have been debating for years about how effective security awareness training, mock phishing exercises, the security posters hung in the break room, and posting security tips on your organization's intranet site are.  And to be honest, perhaps the jury is still out on having any scientific data on that, but what is the alternative?  Do nothing?  We've seen first-hand with recent data breaches how well that works. 

Perhaps the secret formula is a balanced approach of tools, training, and procedures to combat this business risk.  At the end of the day, if you have tools that scan e-mails for suspicious activity, you train your employees on what phishing e-mails look like, give them an avenue to report them (be included in the security process), and hold mock phishing exercises with a teachable moment built in to educate, plus have well communicated procedures on not e-mailing mass data without approvals, or not sending wires without phone verification, or that the CEO (who probably doesn't remember your name) is never going to ask you to "kindly" pick up some iTunes gift cards at the store, then perhaps your organization has a shot at thwarting the Phishers.

Be Secure!!!

@TJMProfessional



Sunday, July 8, 2018

"Are you still in the office?" - A Phishing Story

The below is based on a true story:

Monday at 5:00 pm - You are just leaving the office.

You happen to have left the office on time today (for once) for your kid's soccer game, a happy hour, a hot date, or whatever.  At 5:35 pm you get an e-mail from your boss.  The subject is "Are you still in the office?".  Of course you open the e-mail.  In the body of the e-mail, your boss says "Hey, are you still there?  I need you to do me a favor that's most urgent."  Naturally you want to please your boss, and be responsive.  You immediately respond; "Sure, what do you need?". You then get a reply back; "Thank you so much.  I have a client that I am going to be meeting tonight, and really wanted to "Wow" them by getting their team some iTunes gift cards.  I totally forgot to get them.  Can you run out to a store and get me four $250 iTunes gift cards.  Once you have them, scratch off the back to reveal the code and kindly send me photos of the codes.  I need them before dinner is over at 8:00 pm tonight."

You make a slight detour on the way to your after-work event to stop by a store and purchase four iTunes gift cards with your corporate card.  You then whip out your phone and send your boss photos of the codes by 6:20 pm, and are still able to make your event.  You saved the day for your boss and helped him/her win over the new clients.  Deep down you are hoping your part in this is remembered when raise/bonus evaluation time comes around.  All is right in the world.

Tuesday Morning at 8:10 am - You are in the office and just grabbed your morning coffee.

The boss walks by your desk and says "Good Morning".  You respond in kind and add, "How did the clients like the gift cards?"  Your boss stops, turns to you and says "What are you talking about?"

It is at this point you find out that the e-mail was not from your boss, but that you were the victim of a spear-phishing e-mail.  The cyber criminal stole a $1,000 which you put on your corporate card and had thought you would be getting reimbursed for.

Does this sound like a far fetched story?  It's not.  It is safe to say that thousands of intelligent people around the world fall for this type of phishing campaign every day.  Per the FBI's 2017 Internet Crime Report*, there were 25,344 reported phishing victims in the US alone in 2017.  Keep in mind, most phishing attacks go unreported due to the victim being embarrassed for having been tricked.  Today's cyber criminals rely on human behavior over technical skill.  They will use fear, greed, people's good nature and helpfulness to try to defraud your employees and your business.  Security awareness training is a very effective defense against phishing attacks and is fairly cheap.  Speaking of awareness, let's get to it.  Below are some tips as to what this employee should have done to prevent being a victim:

Tips:
1.)  If you are getting an e-mail from someone (such as your boss), and the request is unusual (ie. not something they have ever asked you to do before.), pick up the phone and call them on a number you know is valid.  Also, if the e-mail is from the CEO or CFO and they most likely don't even know your name, they probably aren't asking you for a favor.  This is when it is good to forward it to your boss with your suspicions, and ask him/her to look into it.  Communicate outside the e-mail thread and use the chain of command to authenticate odd e-mail requests.

2.) Any e-mail asking you to buy something (typically iTunes, gift cards, or prepaid debit cards), transfer customer/employee data, or transfer funds (sending a wire, ACH, Western Union, Money Gram, etc.) needs to be independently verified by picking up the phone and calling the person on a number you know is valid (don't use any contact info in the e-mail that was sent to you).

3.) Cyber criminals know what your office hours are.  So look for "Urgent" requests after hours as highly suspicious.

4.) As with #3 above, the cyber criminals know you most likely will be checking your work e-mail after-hours with a mobile device.  Most mobile phones only show the display name, not the actual e-mail address, so they can send an e-mail from a gmail account with your boss, CEO, or CFO's name displayed and it will appear on your phone or tablet as the display name, not the actual e-mail address.  Click on the display name to show the actual e-mail address.  Even if it looks legit, still call.  No one ever got fired or in trouble for verifying e-mail instructions that seem odd.

5.) Look for very short e-mail messages (with no details).  Also bad grammar/spelling are common signs.  In addition, look for non-American style English being used  "I have a most urgent request" or "Kindly send me the gift card codes."  Does your boss or CEO talk like that? 

6.) Let's say you fell for it, and realize it afterwards.   Report it!  You can still save the day.  In this case, the employee should have notified his company's security officer or HR so that all the other employees could be notified of the scam to prevent additional victims at your organization.  Secondly, he/she should contact Apple and had the codes deactivated.  It wouldn't get the money back, but it would stop the criminals from getting it.  When criminals see a good target, they will keep coming back.  Try to ensure that their attack on you isn't profitable.  This way they will seek an easier target next time and leave you alone.  



Be Secure!


Link to the 2017 FBI Internet Crime Report
* https://pdf.ic3.gov/2017_IC3Report.pdf

Friday, February 16, 2018

Gone Phishing

Phishing, or the act of trying to deceive folks into thinking you are someone else in the hopes of scamming either user credentials, data, or money out of them, is occurring at an alarming rate.  This is also becoming a delivery mechanism for ransomware.


Some popular ones over that last few weeks to be aware of:

DocuSign Document is waiting for you

UPS Quantum Shipment - About a recent attempt to deliver a package to your address.

accounting@<yourcompany>com - An invoice or statement from a vendor that was sent to your company's accounting department.

"You have a fax message from RingCentral"

USPS HoldMail - The email is letting you know that your mail is on hold.

E-mails from your social media contacts whom you don't usually get emails from.

AppleID - A supposed receipt from Apple about some recent purchases you didn't make.

LinkedIn Connection Requests from fake LinkedIn profiles posing as if they worked at the same company as you at some point.   The tells are a low number of connections (under 50) and usually no profile photo.  Best practice is if you don't know them, don't connect with them.


Remember, if you are not expecting an e-mail, don't open it, and always be suspicious of attachments or links.  If you are not sure if it is legit or a scam, call the company from a verifiable phone number, don't click on anything in the e-mail.

Be secure!

Wednesday, January 3, 2018

How long it takes a Hacker to notice your website?

Like most small business owners, I did all of the SEO things one does when they have a new business website up and get noticed by search engines and clients.  I set up my descriptions, keywords, signed up for Google My Business, and created a profile on Manta.  With my website up for only 1 day, per Google Analytics I got my first visitor.  Can you guess from where?  You guessed it, Russia.  Not really part of my geographic profile, but what the heck, a website visitor, is a website visitor.  The individual had spent about a minute on each of my pages.  That’s great, I’m getting noticed the first day my website is up. 

And then on day 2, it happened.  I had an e-mail in my Spam folder.  I looked at the subject line, and sure enough, it was a phishing e-mail.  The e-mail was in the name of an individual and the subject line read “Your Monthly Statement document is ready for review”   Keep in mind, my website had been up for only 2 days.  My website and the listing websites were the only places my newly created company e-mail was posted.  And when I hovered my cursor above the displayed e-mail address, yes you guessed it, it had a .ru domain. 
A week later I got my first spear phishing attempt.  This e-mail was also displaying the name of an individual and the subject line read; “Please DocuSign: Order Form for tjmprofessional.com” and the body stated; “ accounting@tjmprofessional.com has sent you a document to review and sign. “.  Ironically, I don’t have a separate generic e-mail address called “accounting”.  But to give credit to the hacker, it did look more enticing and believable.  And yes, again the e-mail had a Russian domain.

So if you are wondering if your a 6 month old startup, or your 50 year old family business is at risk for a cyber attack?  The answer is most definitely "Yes!".  My business was found, researched, and attacked within 2 days of its online existence. 

Now if only my clients could develop these hacker skills, and find my website as easily.  Who would need to pay for Google AdWords?   J


Tuesday, December 26, 2017

Something smells Phishy

My alternative title for this post was " The IRS, a Nigerian Prince, and your CEO walk into a bar."

As you may have guessed, my last blog post of 2017 is about phishing.  We have all received these e-mails.  Usually written in either poor English or proper English (UK version), has typos, and written as a generic situation so the same e-mail can be sent to thousands of targets.  In most cases, the average person can spot them pretty quickly and don’t fall for them.  Although, you have to imagine that a certain percentage of folks must fall victim to them, or else the criminals would stop using this tactic.  Over the last few years as more people have become aware of these scams, and as their success rate has declined, the cyber criminals have begun to do their homework.  They are now having Americans write the e-mails to get around the language barrier (George Bernard Shaw would be proud), and more and more have changed their approach to spear phishing combined with Business Email Compromise or BEC for short. 

Spear phishing, or targeted phishing, is where the criminals attempt to learn as much as possible about you online in order to gain your confidence.  While this is used against individuals, it is more commonly used against businesses, schools, churches, and other not for profits.  The reasons are many.  First off, businesses and not for profit organizations have more money than the average individual, so it is more profitable to target an organization.  Secondly, businesses and not for profits tend to be very verbose online about their organization, events, officers, employees, board members, what software they use, etc., so the attackers can quickly accumulate a lot of intelligence on their target with a few Google, LinkedIn, and Facebook searches.  Thirdly, let’s face it, human nature is that we all want to be seen at work as cooperative and helpful to our executives.  This plays into the social engineering aspect of phishing.  An additional factor is that very few small to medium sized organizations provide their employees with security awareness training, mock phishing exercises, or have procedures in place to counter phishing attempts.  Given these reasons, small businesses and not for profits are becoming the target of choice by cyber criminals.

So how has this occurred historically?  Below is an actual scenario that I observed (the names have been changed for privacy purposes):

The CEO and his/her spouse goes to Europe for a 2 week vacation.  While there, the CEO checks in on Facebook at various tourist attractions, and posts photos every night of the places they visited that day.  Meanwhile, early in the month the company issued a press release about a new location that they will be breaking ground in the coming month to expand their customer footprint.  Details include the name of the general contractor, and specifics about the square footage of the office space and amount the company is investing in the building.  And the final piece to the puzzle, Mary the controller is very descriptive of her cash management duties for the company on her public LinkedIn profile.

The attacker spoofs the CEO’s e-mail (this is where BEC plays it's part), and sends Mary an e-mail stating:

========================================================================

Subject: Need to Wire Construction Deposit ASAP!

Hi Mary,
I need you to do me a favor while I’m on vacation.  I just got a call from <name of general contractor firm>, they need us to wire a deposit to XYZ Co. so they can order the HVAC equipment now to ensure there will be no delays in the construction of our new Pine St. office.  Please wire $50,000 to ABC Bank, <routing number>, and <account #> for the benefit of XYZ Co.  Please send ASAP!

Thanks,
CEO 

PS:  We are having a great time in Paris.
========================================================================

So do you want Vegas odds on whether or not Mary quickly wires the money without calling the CEO to verify the transaction?

Every day, small businesses and not for profits are being spear phished in a manner similar to the above scenario.  And every day, a number of these organizations are robbed of millions of dollars.

Do you think your organization could fall for this? 
Are your employees trained in how to spot these? 
Do you have procedures in place to verify any unusual banking transactions?

This is why security awareness training needs to be a key part your overall information security program.  A cyber criminal can steal thousands, possibly millions, or get your customer and employee data without ever having to crack a password, infect your systems with a virus, or bypass your firewalls.  They can get your own employees to send them money or data using low tech methods that I regret to say, have been very effective during 2017.

Be Secure in the new Year!