The data-loss startup says it was targeted as part of a "wider campaign to target Chrome extension developers."

By Raphael Satter and AJ Vicens -Hackers have compromised several different companies' Chrome browser extensions in a series of intrusions dating back to mid-December, according to one of the victims and experts who have examined the campaign.

Cyberhaven, a California-based cyber security firm says it was recently hacked on Christmas Eve, and that the hackers were targeting Chrome extensions.