World of Tanks has suffered a security incident, and as a result Wargaming is suggesting all players change their passwords. To make sure users follow through, it's even offering a one-time reward of in-game currency for taking the security measure.
A notice from Wargaming says that no financial information was accessed, but "some password hashes and e-mail addresses may have been affected." It also recommends you change your password on any sites that share your Wargaming ID password, for obvious reasons. A follow-up promises 300 gold to each player that successfully updates their password. It notes, of course, that this is a one-time payment, so you can't just keep changing your password to rack up the money.