Jagex has fired a moderator who reportedly stole billions of gold from players of Old School Runescape.

Over the weekend the developer confirmed that in spite of the gross misconduct, fears that player payment information had been compromised were unfounded.

“We can confirm that none of our players’ bank or card details were compromised,” said Jagex in a statement.

"We work with an industry-respected, fully compliant third-party payment processor, to purposefully avoid staff having access to players’ full bank or card details.

“This also applies when players choose to save their details at payment stage for any future purchases. Jagex undergoes regular, third-party testing to ensure we maintain the highest security standards.”

News broke several months ago on Reddit that 45 billion gold was missing from one player’s account alone. On third-party resale markets, that could end up valued at tens of thousands of dollars.

Jagex later confirmed that a member of the Old School team was dismissed from employment at Jagex due to "gross misuse of moderator privileges”.

The developer made efforts to return as many items and as much gold back to players as possible. Jagex is also in talks with authorities to follow-up the case.

“We pride ourselves on the passion and integrity of the JMods that work for Jagex and we hold them to the highest standards," the Jagex statement continued.

"However, we are not afraid to take tough action and make difficult decisions if someone cannot meet those standards.”