The UK’s top law firms should consider some new evidence before they accept the Royal Bank of Scotland’s proposal that they adopt Identrus, a proprietary scheme owned by a group of investment banks, as their common standard for data encryption.

Adopting Identrus would prove prohibitively expensive, hugely disruptive to existing workflows, act as a brake on the adoption of exciting new information-sharing technologies and, after all that, addresses less than half of the information security concerns of the legal industry.