Cost of the TalkTalk hack

This report comes from BBC News Business:

TalkTalk hack to cost up to £35m

Quote:

The cyber-attack on TalkTalk could cost it up to £35m in one-off costs, the company has said. Following the hack, which divulged some users' financial details, all customers of the telecoms group will be offered a free upgrade.

Cost of the TalkTalk hack