President Trump has signed into law a bill that makes hacking election systems a federal crime, a move some security experts hope will warn off potential cyberattacks.

The House of Representatives passed the Defending the Integrity of Voting Systems Act by voice vote on Sept. 21, more than a year after it passed in the Senate. The law covers electronic voting systems in the federal Computer Fraud and Abuse Act, or the CFAA, allowing prison terms to be up to 20 years.