From Out-Law.com:
UK financial institutions may face compensation claims if they send inaccurate data under FATCA regime
Excerpt:
In its document, which sets out answers to ‘frequently asked questions’ on the issue of data protection and FATCA, HMRC said that financial institutions could face claims for compensation from US nationals if they provide inaccurate information to the US authorities.
“In addition to any rights you may have to claim compensation from the US authorities, the DPA (Data Protection Act) gives individuals the right to claim compensation from a data controller where they have suffered damage because of a breach of the DPA,” HMRC said in its guidance. “As both HMRC and the financial institutions are data controllers for the FATCA information, you can make a claim for compensation to either (or both).”
Pepperdine Law Rev.