Hackers have stolen the personal details of nearly 8,000 visitors to Oxford University’s Ashmolean Museum, but the museum is telling people not to worry, reports the Guardian.

The Ashmolean has sent an email to those 7,757 people whose names, addresses, email addresses, and date and time of visit had been accessed by a hacker who attacked the institution’s website. In an email to those affected, after apologizing, the institution assured everyone that no financial information was compromised, so there is only a “small risk” of identity theft. More likely, they can look forward to “some unwanted marketing communications, whether by email, post or telephone.”