The FBI has recently issued a warning that state-sponsored Chinese hackers had infiltrated the U.S. telecommunications networks. The FBI began investigating this hacking group, known as "Salt Typhoon," in late spring or early summer. They believe Chinese intelligence hacked into AT&T, Verizon, and Lumen Technologies and gained access, including records of phone calls and text messages for many people, particularly in Washington, D.C. The warning comes from the fact that anyone can intercept your phone calls and text messages unless you send encrypted phone calls and text messages. Here's what you need to know.
How did this happen? The recent adoption of RCS or Rich Communication Services by Apple’s iMessage app, which allows iPhone and Android users to communicate more effectively with each other created a problem in which messages between users on different platforms are not encrypted or secured. When creating a system that allows iPhone and Android devices to talk back and forth via iMessage created a vulnerability Currently, as long as you are communicating from one iPhone to another or one Android device to another, your information is still secure.
The problem occurs when one user has an iPhone and the other has an Android device or if there is a group chat with both kinds of users.
The benefit of having Apple and Android devices supporting RCS is that pictures and videos can be texted in full resolution between platforms; the downside is that it has opened this significant security hole. RCS encryption requires both users to be using the same app, such as Google Messages, and must be supported by the various network carriers.
This new complexity of requirements makes it pretty difficult for the average user to know when a message is secure and when it’s not, which is what prompted the alert.
Should you be worried? You're probably wondering why Chinese hackers would be interested in your text messages and unless you’re a government employee, they probably aren’t. The problem you could face is that they cast a wide net over our telecom networks, so your messages could be collected and used to exploit you down the road.
It’s also important to stay secure because potential compromises from other groups that are financially motivated are possible.
How to keep your texts and phone calls safe. Until Apple and Android gets this problem fixed, you probably shouldn't use standard text messaging for sensitive information.
Don't send things like bank account numbers, credit card details, passwords, PINs, Social Security numbers, medical records, employee or client data, or travel documents unless you know that both parties are using the same platform or you have switched to a fully encrypted messaging platform.
Options for Encrypted Messaging and Phone Calls. To ensure your transmissions are encrypted end-to-end, you’ll need to use the same application as your recipients. Here's some options for you to use:
WhatsApp is the most popular secure messaging app that your friends, family and associates likely already have and it works with your existing phone number. It’s a handy app, especially if you travel, as it also allows you to make free Wi-Fi calls and is used extensively in other countries.
Signal is an open-source app that’s owned by a non-profit with no profit-driven motives, but remember, both parties must have the app installed and set up.
Facebook Messenger. Another option for Facebook users is to use the associated Messanger app, as it also provides end-to-end encryption for both one-on-one and group messaging.
VOIP Services. You can take advantage of one of the many VOIP phone providers like Vonage, Ring Central, Zoom Phone or Ooma. All of these providers have apps that you can use within your smartphone to keep your calls encrypted.
Hopefully, this will give you tips to help you keep your phone calls and text messages encrypted and out of prying eyes. If you have any questions, please reach out. I'm always available.
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