Password breach could have ripple effects well beyond Yahoo

LONDON - Information security experts worry that the record-breaking haul of password data from Yahoo could be used to open locks up and down the web.One big worry is a cybercriminal technique known as "credential stuffing," which works by throwing leaked username and password combinations at a series of websites in an effort to break in, a bit like a thief finding keys in an apartment lobby and jamming them, one after the other, into every door in the building.The spillover effect on other webs