Facebook, the social media giant is set to face a fine of up to £1.25 billion after revealing that 50 million user accounts were compromised on Tuesday 25 September, with affected users being notified via their Facebook accounts.

This recent data breach has been established as the largest security breach Facebook have faced. It is also one of the more severe breaches, as the hackers obtained “access tokens”, which are a form of security key allowing users to browse Facebook on numerous devices without entering a password.

Obtaining these “access tokens” allowed the hackers to gain full access to a user’s account, including third party applications.

Facebook’s CEO, Mark Zuckerberg addressed the security breach, stating:

The Network and Information Security (NIS) Directive is intended to create a base level of security for organisations that are operating essential services within the EU. 

The legislation came in on 6 July 2016 and became enforceable from 10 May 2018. The main sectors covered are energy providers, transport, banking, financial services infrastructure, health, water and digital infrastructure providers. 

Organisations who operate within these sectors are termed “operators of essential services” and must implement the provisions of the directive to form the required base level of security for those services.