LastPass has notified its users of a data breach that occurred through one of its outside partners, Klue, a market research firm. The breach resulted in the exposure of customer information, including names, phone numbers, email addresses, and physical addresses, as well as support case data and sales-related data. LastPass claims that its password vaults were not affected. The company is recommending that customers remain vigilant of potential phishing attacks or social engineering attempts leveraging the compromised information.