CEO fraud scams are on the rise. They aren’t that different than other phishing emails, except most get it and think it’s from the boss. These crimes can wipe clean out companies of millions of euro. Your business has to be first aware of these crimes before being in a position to prevent them.
Sophisticated Threat Actors
In CEO fraud, threat actors are using a more sophisticated social engineering strategy. The email appears to be from the CEO with instructions to wire funds. Except it’s not, and the account is fraudulent. If it’s a normal request that doesn’t seem out of the ordinary and the receiver doesn’t pay close attention, they’ll send the request through. Except it wasn’t’ the boss, and the company was scammed out of money.
Educate financial executives on this phishing scam
These threat actors have done their homework. They know whom to target in the financial team; someone who very well may receive real directives on wiring money. So, you’ll need to review with these employees how easy it is to spoof the boss. First, they need to check to see if it’s the actual email address of the CEO and not a domain that’s close. Next, they should ask if they were actually expecting such a request. Finally, they should confirm this directive with the CEO by sending their own email or contacting him/her by phone. There has to be a well-designed process of how to validate these requests.
Always check the numbers
So, it’s not so easy to always spot these CEO fraud emails. These cyberhackers are much too clever to trip up with bad grammar. The email may look 100% legitimate. It could actually be coming from the CEO’s email because hackers have infiltrated the system. Thus, the numbers have to be checked. Often, the account number is one off from an actual supplier account.
Implement training for all parties
Even those that don’t have to send funds. Training on all types of phishing scams and cyber threats should be a hallmark of any organisation’s security program. Reinforce this training regularly and send out updates when new types of scams are identified. If you keep employees aware, they become vigilant in how they look at emails asking for things that seem abnormal.
Require proper documentation and/or verbal approval for large transfers
If someone receives a wire transfer request for an amount that seems far beyond the norm, it’s cause for concern. That’s why it’s central to institute a policy that the correct documents must accompany all transfers above a certain amount. For certain thresholds, you may want to initiate in-person approvals. This isn’t meant to cause a bottleneck so think about the workflow and how extra checks and balances can improve the process, not derail it.
Associate each wire transfer with a purchase order
In most any request for payment from a vendor, there should be a valid purchase order in the accounting system. If a request cannot be matched to a purchase order, then more investigation should occur.
Buy domain names that are variations of your organisation’s name
Look at variations of different letters but also if numbers are replacing letters. There may be a lot of different possibilities, and this isn’t something that should bloom to an excessive cost. Your IT team should be able to advise you of the most likely options and if those are currently for sale.
Add multi-factor authentication (MFA) to all key applications
This is especially true for any financial platforms. This means users have to confirm their identity before being able to commence a wire transfer. It’s a good practice for any application used by the organisation.
Protect endpoints with more than passwords
You need to engage MFA in this instance as well. Consider a variety of layers of security. This could be mobile fingerprints, one-time password tokens, digital certificates, and biometrics.
Layer on identity controls
For systems that have highly sensitive, confidential, or proprietary data, establish privileged session monitoring. Initiating session monitoring will allow for the control, monitoring, and record of access to systems as the administrator. This type of monitoring can be as granular as keystrokes. This type of monitoring is required for auditing and to meet regulations. Choose an integrated solution for this monitoring and use it as a tool to ensure key systems aren’t being infiltrated that could be used to spoof a CEO fraud attack. Integrated means that it can scale no matter how large your group of administrators is.
Flag emails from extensions close to yours
As one of the biggest ways CEO fraud is pulled off, it’s all about the almost correct domain. This could be an extra letter added, or maybe it’s .co instead of .com. Your network staff should be able to set up a rule that says when any email enters the system with these variations, it should be flagged. The parameters should be set to consider anything that’s slightly different. There should be a good way to insert this via an algorithm that uses something like fuzzy logic.
CEO fraud isn’t going away. As threat actors become smarter and use social engineering to spoof emails, employees in every organisation have to be aware of the dangers. Shining a light on what could happen if security measures aren’t heeded could be a very eye-opening experience.
Scam prevention, in the end, is coming at the problem from several perspectives. These 10 tips are a great place to start. While the technical preventive measures are important, perhaps the training and education part of the plan is the most. Empower your employees to spot the scam, not be a victim of it.