Yahoo 2013 💻 data breach hit 'all three billion accounts'

Yahoo said all of its three billion user accounts were affected in a hacking attack dating back to 2013.

The company, which was taken over by Verizon earlier this year, said an investigation had shown the breach went much further than originally thought.

Yahoo said that while its latest announcement did not represent a new "security issue" it was sending emails to all the "additional affected user accounts".

In Tuesday's statement Verizon's chief information security officer Chandra McMahon said: "Verizon is committed to the highest standards of accountability and transparency, and we proactively work to ensure the safety and security of our users and networks in an evolving landscape of online threats.

Our investment in Yahoo is allowing that team to continue to take significant steps to enhance their security, as well as benefit from Verizon's experience and resources."

UCJ, UNILORIN.