German automotive supplier Continental AG has banned its workers from using the messenger services WhatsApp and Snapchat on company phones.

The firm said Tuesday that the ban, effective immediately, was put in place over concerns about the security of people’s data saved in the contacts list of a phone or tablet.

“These services have deficiencies when it comes to data protection, as they access users’ personal and potentially confidential data such as contacts, and thus the information of third parties,” the company’s release said.

Europe’s new GDPR data privacy law was introduced on May 25 to combat how technology giants like Alphabet’s Google and Facebook gather and handle personal information.

Continental is concerned that it could be exposed to the new law as, in the German firm’s opinion, responsibility for compliance has been shifted towards app users. It said that to meet GDPR requirements, a user of the messenger platforms would have to contact everyone in their contact list.

“The risks this poses in terms of data protection are not ones the company is willing to take,” it added.

Describing data as an “obligation,” Continental CEO Dr. Elmar Degenhart called on tech firms to make it easier for users to comply with the new rules.