A mathematical lock for digital data.
Prevents hackers, malicious actors, and foreign nations from getting access to sensitive communications and information.
Some considerations around encryption:
If a government doesn't allow encryption (e.g., Russia) or requires companies to decrypt information on demand (e.g., Australia), it is also much easier for hackers, malicious actors, spies, stalkers, the mafia, and foreign nations to mess with people's lives.
Banning or weakening encryption in the U.S. would inevitably push companies to start moving their servers and data somewhere with more security protections, such as Europe.