Martin S. writes "The Register reports that 'Top UK e-commerce sites including Amazon, Tesco and Virgin Atlantic are not doing enough to safeguard users from their own password-related foibles, according to a new study by Dashlane ... 66% accept notoriously weak passwords such as '123456' or 'password,' putting users in danger as these are often the first passwords hackers use when trying to breach accounts. ... 66% make no attempt to block entry after 10 incorrect password entries (including Amazon UK, Next, Tesco and New Look). This simple policy prevents hackers from using malicious software that can run thousands of passwords during log-ins to breach accounts.'" xkcd has some insight about why this is bad for users generally, not just on any sites that happen to get compromised. Rules that require ever more complexity in passwords, though, probably backfire quite a bit, too.