ELECQ, maker of smart electric vehicle (EV) chargers, is warning customers that their personal details may have been stolen in a ransomware attack that encrypted and copied user data from its cloud systems. In a notice sent to customers on Monday and seen by The Register, the EV charging outfit said that it detected "unusual activity" on its AWS cloud platform on March 7 and quickly discovered that attackers had launched a ransomware attack against parts of its infrastructure.