Sex, Lies and Cyber Attacks review – where’s the big Ashley Madison reveal?

There's nothing like other people's infidelities to get the pulse racing, but this 'inside story' promises more than it delivers. Plus: DCI Banks is grumpy and Bear Grylls does choreographed excitement

When a bank's computer system is hacked and details of its customer accounts leaked, then everyone - other than those involved - usually gets bored with the story in a matter of days. When it's an online dating site for people wanting to have affairs, then there's a media feeding frenzy for months on end. There's nothing like other people's infidelities to get the pulse racing.

Sex, Lies and Cyber Attacks (Channel 4) set itself up to be to be the inside story of how the Ashley Madison website came to be hacked in July last year, when the email addresses of more than 30 million of its users were made public. However, as no one is yet any the wiser as to who exactly Impact Team, which claimed responsibility, really are - the best guess is that it was a disgruntled Ashley Madison employee - it inevitably promised more than it delivered.