A recent decision and fine against a barrister by the U.K.’s Information Commissioner regarding confidential information provides some important lessons for both U.S. and U.K. attorneys.

The confidential information belonged to as many as 250 individuals, “including vulnerable adults and children,” and was “uploaded to the internet when the barrister’s husband updated software on the couple’s home computer,” according to a statement from the Information Commissioner’s Office (ICO) which is the data protection authority in the U.K.