The hack is a reminder that everyday infrastructure can be vulnerable to hackers—and that using '1234' as a password is always a bad idea.

In the wee hours of the night last April, someone stopped at roughly 20 street intersections across Silicon Valley and launched an unprecedented cyberattack that would eventually spread to multiple ...

Shoppers debate risks of bypassing Aldi’s cart system as an employee warns common workaround could cause costly problems.