It had all the trappings of a Hollywood blockbuster: a massive data breach, hackers hired by Russian spies, and a secret operation that went on for years undetected. Except for one rather pedestrian and crucial element. According to indictments handed down by the US Federal Bureau of Investigation, the hackers penetrated Yahoo’s security not through some sophisticated cyber-tango of caffeine-fueled hacker artistry. There weren’t any high-tech micro computers covertly implanted into neon-lit server racks following a series of cleverly choreographed hi-jinks. No, the largest single leak of Personally Identifying Information was enabled by a Yahoo employee falling for a spear phishing attack.
Here comes the email security soapbox again!
What’s a spear phishing attack and what makes it different from the rest of the spam you get in your email? Typical spam and phishing emails are sent to as many people as possible in the hopes that a small percentage will click the link or open the attachment, whereas spear phishing is designed to target a very specific audience or even a particular individual. They are typically several levels more sophisticated than the usual garbage clogging our email as the content is custom-tailored to appear believable to the target. While I’m sure many of you are scratching your heads at how a single click on a fake email could lead to the largest breach in history against a storied dot-com darling, keep in mind that in the ongoing plate-spinning war of internet security, the good guys only win if they can keep all the plates spinning, and the bad guys win if even a single plate falls.
There are many lessons to be learned from this incident, but perhaps the most important one of all still remains: all security systems are only as strong as the weakest link, and many times that weakest link is a human. Given enough resources, time and determination, any security system can be hacked, and any company or organization can be breached. What’s a business owner to do in light of a seemingly unstoppable force? Just like preparing for two other famously unavoidable eventualities, planning for security breach will prepare you to react properly and deliberately rather than a mad scramble for recovery. Not sure how to get started? Pick up the phone and let C2 give you a leg up on getting ready.