Disclaimer: My comments below are based upon quotes from both Twitter and The Times of London on the UK’s TalkTalk breach; as a result the subsequent investigation and analysis may find that some of the assertions are in fact incorrect. I will post clarifying statements should this happen to be the case.
I am not normally one to pick over the bones of company A or company B’s breach as there are many people more morbid and qualified than me to do so, and I also hate the feeling of tempting fate. All over the world i would guarantee there are CISOs breathing a sigh of relief and muttering to themselves/psychoanalyst/spouses “thank god it wasn’t us”. Bad things happen to good people, and an industry like ours that tends to measure success on the absence of bad things happening is not a great place to be when those bad things appear to happen far more frequently than ever before.
So it took me a while to decide if I should write up my feelings on TalkTalk’s breach, although I had Tweeted a few comments which were followed up on.
Initially I was shocked that people are still using the same password across so many crucial accounts. After a ten minute rant in the car about it with my wife, she calmly (one of the many reasons I married her) explained that not everyone thinks like me as a security professional, and that I should remember my own quote of “convenience eats security for breakfast”. Having calmed down a little, I was then shocked by something else. That something else was when the TalkTalk CEO, Dido Harding was on national television looking clearly exhausted (I can only imagine how much sleep she had been getting the last few days) giving out unequivocally bad advice such as “check the from address on your emails, if it has our address it is from us”. Graham Cluley’s short analysis was spot on here:
As if TalkTalk’s customers hadn’t gone through enough, they are then being given shoddy advice from someone in a supposed position of trust that is going to put them at even more risk. The scammers and phishers must have been rubbing their hands with invisible soap and glee as they prepared their emails and phone calls.
Now, the attack it seems did not disclose as much information as was first though, which is good news. So credit card numbers were tokenised and therefore unusable, so no direct fraud could be carried out there (again dependent upon the form of that tokenisation which I am sure there will be more details on in the coming months). Bank details were however disclosed, but again, there is a limited amount of damage that can be done there (there is some I acknowledge, but it takes time and is more noticeable… another time for that discussion). Here is the Problem Number One though; with Harding’s poor advice, many people subsequently (and allegedly) fell for phishing attacks through either phone calls or emails, and lost hundreds of thousands of pounds. TalkTalk’s response? Credit monitoring.
And then we move to Problem Number Two; Why weren’t the bank details stored safely? Why were they not encrypted? Armed with the knowledge of customers bank account details scammers can make a much more convincing case that they are actually from TalkTalk, especially if other account information was also lost (time will tell). TalkTalk’s response?
So TalkTalk was technically compliant? Shouldn’t this kind of thinking be consigned to the same mouldering scrapheap where “we’ve always done it this way” and “we’re here to secure the business, not help it” lay? I sincerely hope that this episode will at the very least highlight that “compliance” and “security” are two very different things and that the former most certainly doesn’t automatically result in the latter. What has transpired is the perfect storm of a breach, unforgivably poor advice, and complacency based upon compliance and resulted in the pain of a lot of people involving large amounts of money.
If an example like this does not spur you into doing more as regards your own security awareness activities, then please go back to the beginning and start again. Why? I have been accused of “victim blaming” somewhat (see the above Tweets), but if individuals had an ounce of sense or training they wouldn’t have fallen for the subsequent scams and been more careful when responding to email supposedly from TalkTalk. I will leave the last word to Quentin Taylor, and as you carry on with your internet residencies, don’t forget you need to wear protective clothing at all times.
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