Enlarge / A group of Black Friday online shopping purchases photographed in delivery boxes filled with polystyrene packing pellets, taken on September 13, 2019. (Photo by Neil Godwin/Future Publishing via Getty Images) (credit: Getty Images)

If you build a gadget that connects to the Internet and sell it in the United Kingdom, you can no longer make the default password “password.” In fact, you’re not supposed to have default passwords at all.

A new version of the 2022 Product Security and Telecommunications Infrastructure Act (PTSI) is now in effect, covering just about everything that a consumer can buy that connects to the web. Under the guidelines, even the tiniest Wi-Fi board must either have a randomized password or else generate a password upon initialization (through a smartphone app or other means). This password can’t be incremental (“password1,” “password54”), and it can’t be “related in an obvious way to public information,” such as MAC addresses or Wi-Fi network names. A device should be sufficiently strong against brute-force access attacks, including credential stuffing, and should have a “simple mechanism” for changing the password.

There’s more, and it’s just as head-noddingly obvious. Software components, where reasonable, “should be securely updateable,” should actually check for updates, and should update either automatically or in a way  “simple for the user to apply.” Perhaps most importantly, device owners can report security issues and expect to hear back about how that report is being handled.