Social networking giant Facebook (FB - Get Report) and messaging app WhatsApp are on Santa's "naughty" list this Christmas.

CNIL, France's agency protecting personal data, has given WhatsApp and its parent a month to comply with a formal notice. At issue is WhatsApp's move to share users' private information with advertisers, which is contrary to what founder Jan Koum promised.

WhatsApp lacks the legal basis for doing that, says CNIL.

WhatsApp did the equivalent of a "privacy U-turn" in August 2016, when it announced it would start targeting users with ads for "business intelligence" purposes, TechCrunch reported today.

CNIL isn't buying that. Neither is the European Commission, which fined Facebook $122 million in May of this year for saying it couldn't match profiles between the two platforms. European data protection agencies are tired of Facebook's "slurp happy" attitude when it comes to encroaching on personal data, adds The Register, a global online tech publication.

More of What's Trending on TheStreet:

Facebook is a holding in Jim Cramer's Action Alerts PLUS Charitable Trust Portfolio. Want to be alerted before Cramer buys or sells FB? Learn more now.

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.