Online photography store iStockphoto warned of a phishing attack targeted against its website on Wednesday, “We strongly urge all users who logged in at some point today to change their passwords,” the company said on its website. “In addition, do not open any site mail for the next 24 hours.” Attackers created a fake iStockphoto login screen, saved users' credentials on a malicious server then redirected them back to the website's main page. The company said that no financial information was breached. — AM