Online banking services in Vietnam remained safe from the OpenSSL Heartbleed, said the State Bank of Vietnam (SBV) on its website late Thursday. Vietnamese media on Wednesday reported that 15 websites providing services of online banking of Vietnamese banks have been attacked by Heartbleed, said SBV. After receiving information on OpenSSL Heartbleed, all credit agencies in Vietnam's banking system have checked and fixed the system. They are now safe and operating normally, said the country 's central bank. The SBV also suggested all customers of online banking services to strictly comply with the regulations of banks, changing lock code and using transaction control and account balance to monitor their accounts.