Facebook violates Vietnam's new cybersecurity law by allowing users to post anti-government comments on the platform, state media says, days after the controversial legislation takes effect in the communist-ruled country.

Alarmed by the theft of $81 million from Bangladesh's central bank in February, one of the world's biggest ever cyber heists, cybersecurity is among the top concerns discussed at Singapore's annual Shangri-La Dialogue Asian security summit. For the first time, the conference allots one of its six special sessions to cybersecurity.

The US Department of Defense invites vetted hackers to test its cybersecurity under a pilot program that is the first of its kind in the federal government.

Russian online security specialist Eugene Kaspersky says cybercriminals will one day go for bigger targets than PCs and mobiles, sabotaging entire transport networks, electrical grids or financial systems.