Confirmation that Facebook chief executive Mark Zuckerberg will meet senior members of the European Parliament to discuss privacy issues reveals the seriousness of the challenge to the tech giant.

Although he shunned a recent request to explain himself to the UK Parliament, following the Cambridge Analytica data privacy scandal, the pressure is being ratcheted up.

The meeting in Brussels, as early as next week, could be a watershed moment for Facebook, given the data regulations known as GDPR come into effect next Friday.