Lawyers rushed to bring about a dozen class actions over Marriott’s data breach—and with about 500 million people potentially impacted, they didn’t have to go far to find a plaintiff.

“There are so many people that have been potentially compromised, which means basically people could trip over a plaintiff if they just walk outside,” said Amy Keller, who filed one the lawsuits. Marriott announced Nov. 30 that hackers breached the reservations program of its Starwood properties, which include W Hotels and the Westin Hotels & Resorts.