While the longest partial federal government shutdown in U.S. history ended Monday after 35 days, cybersecurity experts have said the federal shutdown’s effects could have significant negative impact that puts national security or personal data at risk.

But, even as data breaches materialize, those affected will have little recourse to seek damages. Lawyers said litigation seeking monetary damages would be hard-fought and perhaps for naught, as the federal government has sovereign immunity, and showing harm may be difficult.