I suppose they need to fund their nuclear program with something.

It’s now clear the global banking system has been under sustained attack from a sophisticated group — dubbed “Lazarus” — that has been linked to North Korea, according to a report from cybersecurity firm Symantec.

 In at least four cases, computer hackers have been able to gain a dangerous level of access to SWIFT, the worldwide interbank communication network that settles transactions.

In early February, hackers broke into Bangladesh’s central bank and stole $101 million. Their methods appear to have been deployed in similar heists last year targeting commercial banks inEcuador and Vietnam.

Symantec revealed evidence on Thursday that suggests hackers used the same technique to slip into a bank in the Philippines in October. Symantec (SYMC) did not name the bank.