ENB said it was "so sorry" and is warning customers to be cautious of unexpected emails.
The out-of-control AI found four logins which allowed it to access multiple unnamed online services.
Owen Flowers and Thalha Jubair were convicted for their roles in the attack, which led to large costs for Transport for London.
A BBC podcast investigates as the tables are turned on a ransomware gang whose messages are leaked.
The 19-year-old dual American-Estonian national has been extradited to the US, where he is facing federal charges.
For four days, dozens of Romanian hospitals went offline, as cyber-experts sought to defeat the hackers.
John Adams' personal data was leaked when his healthcare provider was hacked.
Chompie, one of the world's tops ethical hackers, says AI like Claude Mythos will make it harder for people like her to compete.