From Kevin Peachey and Bill Wilson of the BBC News:
Personal data including the signatures of recipients has been exposed to those tracking deliveries on the Parcelforce website, the BBC has discovered.
A failure in the system allowed people using the mail tracing service access to the name, postcode and signature of various addressees.
The breakdown put Parcelforce at risk of breaching data protection rules.
The delivery service, which is part of the Royal Mail Group, apologised for the problem.
[…]
A spokesman for Parcelforce Worldwide apologised to customers who had been affected.
He said the problem emerged after work to the computer system late on Wednesday night and early on Thursday morning. Attempts were being made to fix it, with the online and telephone system halted until this had been done.