Data storage giant Western Digital said hackers stole a database containing the personal information of customers during a cyberattack that occurred on March 26. The company — which had 2022 revenues of about $19 billion and is best known for the SanDisk brand of portable hard drives and removable memory cards — announced the hack last month. On Friday, Western Digital’s vice president of e-commerce, Eyal Bek, sent a letter to customers confirming that names, billing and shipping addresses, email address and phone numbers were included in the stolen database. “We are working with leading outside forensic and security experts to assist with our investigation and are coordinating with law enforcement,” Bek said. The company did not specify which experts it hired. “As a security measure, the relevant database stored, in encrypted format, hashed passwords (which were salted) and partial credit card numbers,” Bek said. “We have temporarily suspended online store account access and the ability to make online purchases. We expect to restore access the week of May 15, 2023.” The company urged customers to be wary of messages asking for personal messages and warned against clicking on any links in emails from unknown senders.