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Townsend Security Data Privacy Blog

The TNT/FedEx NotPetya Breach and Why Old Style Backups are Back in Fashion

Posted by Patrick Townsend on Sep 25, 2017 9:09:23 AM

Not all cyber attacks result in the loss of sensitive data. The astounding Equifax data breach is on all of our minds right now, but sometimes a security breach results in unrecoverable damage to critical systems. These attackers are not looking to perpetrate financial fraud - they are looking to damage the operational status or reputation of an organization. That happened to TNT (a FedEx division) recently.

data-encryption.jpgTNT/FedEx suffered the loss of critical systems that inflicted severe financial pain. John Pescatore of SANS expressed it this way:

When numbers like this come out, they are great data for convincing your management that, almost invariably, fixing known security problems (even if it causes business disruption) is almost invariably cheaper than enduring an incident. FedEx acquired TNT Express in 2016 fort $4.4B, and the estimates for TNT's 2016 profit were about $150M. So, NotPetya essentially cost FedEx *two years* of TNT's profit. Even if mitigating the Windows SMB vulnerability back in March would have required TNT to shut down all revenue operations for an entire day, the impact would have been about $7M in revenue or in the range of $350K in profit, or about .1% of what enduring NotPetya has cost, so far.”

At Townsend Security we usually focus on encryption technologies to help prevent the loss of sensitive data. But it is good to remember that the loss may be in critical IT infrastructure.

How to recover from that?

You need to have current backups of all critical systems. Yep, old fashioned, off-line backups that cannot be damaged by the attacker. Too many modern backup systems are based on shared storage that appear as mounted drives. These are very easy to damage by a NotPetya or similar attack. It seems old-fashioned, but you really need to have backups on removable media in a safe location. There is just no substitute for that.

Of course, the tape backup should be encrypted to protect the data on the way to offsite storage, in storage, and on the way back. Tape backup systems are very inexpensive these days. We happen to like the system from Quantum, who are one of our partners on the encryption key management front. But you can find good solutions from a number of vendors. More information about Quantum here.

Patrick

Topics: AES Encryption

 

 

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