Canadian crypto exchange Catalyx has halted withdrawals and suspended all trading activity on its platform following the discovery of a "security breach", which it suspects may have involved one of its own employees.

"Management suspects that this security breach, which may involve an employee, has resulted in the loss of a portion of the crypto assets held by the Company on behalf of its clients," wrote Caltyx in a Dec. 28 statement.

Catalyx did not disclose how much of its crypto assets had been lost to the breach.

Due to the loss, all crypto and fiat currency withdrawals from the Platform and all trading activities on the platform have been temporarily suspended.

Additionally, the platform noted that it had consented to a cease trading order, which was issued by the Alberta Securities Commission on Dec. 21 in relation to the security breach.

The crypto exchange added that it was investigating the losses and had engaged consulting firm Deloitte to help get to the bottom of the security breach.

The official Catalyx website currently features a warning banner, advising users that its platform is suffering "technical difficulties," and that it would advise users when regular functions had been restores.

The Catalyx home pages warns users that it is suffering "technical difficulties."

This is a developing story, and further information will be added as it becomes available.