Why the U.S. government is saying all citizens should use end-to-end encrypted messaging
DEC 15 2024
Think twice before sending your next text message. Or better yet, make sure you are using an end-to-end encryption method.
Consumers regularly use different types of messaging technology from the biggest technology companies including Apple
, Alphabet
and Meta Platforms
, including iMessage, Google Messages, WhatsApp and SMS, but the level of protection varies. Now, the U.S. government is expressing greater concern after a recent massive hack of the nation’s largest telecom companies.
Last month, the Cybersecurity and Infrastructure Security Agency and the Federal Bureau of Investigation revealed a campaign by hackers associated with China, Salt Typhoon, that compromised AT&T
and Verizon
, and others, and was one of the largest hacks of U.S. infrastructure in history. Following that warning, CISA, the National Security Agency, the FBI and international partners published a joint guide to help protect Americans. One suggestion is to use end-to-end encryption, a method that makes communications more secure.
End-to-end encryption helps ensure that only the intended recipients can read your messages as they travel between your phone and another person’s phone. Secure messaging apps use end-to-end encryption to protect communications from hackers, surveillance and unauthorized access, so even messaging app providers can’t read your messages.
“All things being equal, if you have the opportunity to use a platform that’s end-to-end encrypted, you should,” said Michael Hughes, chief business officer of Duality Technologies, which allows organizations to share and analyze sensitive data using encryption.
Many consumers don’t know their options for communicating securely over messaging apps. Here are the basics.
WhatsApp, Signal among best end-to-end options
Consumers use different messaging apps for various purposes, often without giving a second thought to security. However, there are notable differences among platforms that people need to be aware of.
From a security perspective, free messaging apps like Meta’s WhatsApp and Signal — whose co-founder was one of the creators of WhatsApp — are considered the best because end-to-end encryption is built in. That makes these apps highly preferable to SMS and MMS, two older methods of messaging that don’t offer end-to-end encryption, said Trevor Horwitz, founder of TrustNet, a cybersecurity and compliance services provider.
Even platforms considered the best for end-to-end encryption have downsides. Signal is a favorite among many privacy enthusiasts because its mission emphasizes not collecting or storing sensitive information. This can be especially compelling for people who are wary of WhatsApp’s parent Facebook and its privacy practices. The downside to Signal is it’s not as widely used as WhatsApp and if your contacts aren’t on it, you can’t communicate, said Roger Grimes, an analyst at KnowBe4, a security platform provider.
There are also paid messaging apps that are end-to-end encrypted, such as Threema. It’s privacy by design and no phone number or email address is required, but it costs a few dollars, and getting your friends and family to join when there are free options that are already popular might be a challenge.
Most people will use encryption “if it’s default and they don’t have the slightest inconvenience,” Grimes said.