TalkTalk UK fined for having failed to apply “the most basic cyber security measures”. The damage of its reputation is measured: they lost about 100,000 customers. The loss in profit is measured: it went down by 55%. The cost of the breach is estimated to be between £40 and £45 million. All that for a vulnerability which was known for three years by the time of breach. With GDPR in place, the fine could have been higher (4% of their revenue of £1.83bn)

http://www.computerweekly.com/news/450400451/TalkTalk-hit-by-record-400000-fine-over-data-breach

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