GroupM has told publishers they must sign a data sharing contract before the General Information Protection Regulation ( GDPR ) takes effect in May or cease trading with the media - buying agency . The contract allows publishers to share control of their audience data with GroupM , and has caused some to express concerns that the agency is looking after its own GDPR data while leaving publishers at risk of bankruptcy .
GroupM has told publishers they must sign a data protection contract before the General Data Protection Regulation (GDPR) takes effect in May or cease trading with the media-buying agency. The contract requires publishers to share control of their audience data with GroupM, and has caused some to express concerns that the agency is looking after its own GDPR compliance while leaving publishers at risk of fines.