A private conversation between two friends on a park bench requires no government license and invites no official review. Wednesday, Oct. 21, marks Global Encryption Day, a moment to ask why the same expectation of privacy so often disappears the instant that conversation moves online. Encryption is the technology that closes that gap, and across several democracies, it is now under direct pressure from the very governments meant to protect civil liberties.
What Encryption Actually Protects
Encryption secures banking transactions, medical records, business communications, and personal messages by scrambling data so that only authorized parties can read it. End-to-end encryption, used by services such as Signal, goes a step further: when implemented correctly, not even the company running the service can access the content of a conversation. Only the sender and recipient hold the keys.
This matters most for people with the least power to protect themselves. A woman escaping an abusive partner needs to coordinate with a shelter without her location leaking. A journalist needs a secure channel to a source without exposing that person to retaliation. Activists and religious minorities living under repressive governments depend on private communication simply to organize or worship without fear of arrest. Strip away encryption, and every one of these conversations becomes potential evidence against the people least equipped to defend themselves.
The Backdoor Problem
Governments pursuing what they call “lawful access” argue that a special key for officials can exist without weakening security for everyone else. Security engineers have consistently rejected that premise. A mechanism built to let one government unlock encrypted data cannot be limited to that government alone. It becomes a standing target for criminal hackers, hostile foreign intelligence services, and officials willing to misuse their authority. A vulnerability engineered for one jurisdiction does not respect borders - once it exists, it can be found, copied, or exploited anywhere.
This is not theoretical. The United Kingdom reportedly sought access to Apple’s encrypted cloud backups worldwide before narrowing its demand to UK customers specifically, a move Apple has challenged before Britain’s Investigatory Powers Tribunal. Canada’s proposed Lawful Access Act has drawn warnings from American lawmakers that it could force companies to build access points into encrypted systems used far beyond Canadian borders. The European Commission, meanwhile, is developing its own roadmap for law enforcement access to encrypted data, paired with assurances that cybersecurity and fundamental rights will be preserved. Technical reality does not bend to political reassurance: a weakness introduced for law enforcement is a weakness available to anyone who finds it.
Why Borders Cannot Contain the Risk
American companies supply encrypted services to users worldwide, which means a vulnerability mandated abroad can expose Americans just as easily as foreign nationals. Intelligence agencies have a long history of exploiting openings created elsewhere to extend their own reach. That risk underscores why encryption policy cannot be treated as a purely domestic or purely foreign matter - it is both at once.
- Congress could bar U.S. agencies from compelling companies to weaken encryption or insert surveillance access into secure products.
- American diplomats could be given explicit authority to push back against foreign mandates that compromise U.S. users’ security.
- The Clarifying Lawful Overseas Use of Data Act could be strengthened so that international data-sharing cooperation does not come at the cost of undermining encryption itself.
A Narrow Window for Bipartisan Action
Targeted investigations, judicial warrants, and effective policing do not require dismantling the locks that protect everyone else. Those goals can coexist with strong encryption through careful, court-supervised methods that do not introduce systemic vulnerabilities. Global Encryption Day is less a celebration than a reminder: the right to a private conversation did not end when conversations moved from a park bench to a smartphone, and defending that right now falls to lawmakers who must decide whether security is a privilege for governments or a guarantee for citizens.