The messaging application TeleMessage signal,utilized by at least one prominent official from the trump governance for message archiving,has reportedly encountered security breaches that highlight significant vulnerabilities. This has led its parent company to suspend services temporarily while an investigation is underway. Recent findings from journalist and cybersecurity expert Micah Lee indicate that TM Signal’s archiving capabilities may fundamentally compromise the app’s core security promises. Specifically, it appears that messages are transmitted between the app and a user’s archive without end-to-end encryption, rendering users’ communications accessible to TeleMessage.
Lee undertook a extensive analysis of TM Signal’s Android source code to evaluate its design and security features. In partnership with 404 Media, he had previously reported on a hack involving TM Signal over the weekend, which exposed user messages and other sensitive information—suggesting that some data was being transmitted unencrypted or in plaintext at times within the service.This revelation contradicts TeleMessage’s marketing claims asserting that TM Signal provides “End-to-End encryption from mobile device to corporate archive.” According to Lee’s latest findings, though, it is indeed evident that TM Signal lacks true end-to-end encryption and allows the company access to users’ chat content.
“The existence of plaintext logs validates my concerns,” Lee stated in an interview with WIRED. “The ease with which someone could breach the archive server and TM Signal’s glaring lack of overall security was more alarming than I anticipated.”
TeleMessage is an Israeli company that acquired US-based digital communications archiving firm Smarsh last year. Although TeleMessage operates as a federal contractor, its consumer applications are not authorized for use under the Federal Risk and Authorization Management Program (FedRAMP) established by the US government.
Smarsh did not respond to WIRED’s inquiries regarding Lee’s discoveries but acknowledged on Monday: “TeleMessage is investigating what appears to be a security incident. Upon detection of this issue,we acted swiftly to contain it and have engaged an external cybersecurity firm for further investigation.”
The implications of Lee’s findings are significant for all customers using TeleMessage but hold particular weight given that TM Signal was used by former National Security Adviser Mike Waltz during his tenure under President Donald Trump. He was photographed last week using this service during a cabinet meeting alongside other high-ranking officials such as Vice President JD Vance, Director of National Intelligence Tulsi Gabbard, and Secretary of State Marco Rubio. The functionality of TM Signal closely resembles that of genuine Signal; thus messages exchanged in chats involving any user utilizing either platform can be accessed irrespective if all participants are using only one or both apps.
Lee discovered that TM Signal stores conversation records locally on users’ devices before transmitting them directly to an archive server for long-term storage—ofen as plaintext chat logs based on his examinations conducted during research sessions. His analysis confirmed access by the archive server to these unencrypted chat logs.
The data extracted from TeleMessage’s compromised archive included chat histories along with usernames and plaintext passwords—alongside personal encryption keys.
A letter issued on Tuesday by US Senator Ron Wyden urged the Department of Justice (DOJ) to investigate TeleMessage due to concerns about national security risks associated with their services: “This poses a serious threat,” he asserted.
“Government agencies employing TeleMessage Archiver have made one of their worst possible choices,” Wyden remarked further in his statement. “They’ve provided their personnel something resembling trusted interaction tools like those offered by Signaling apps; however they’ve instead equipped senior officials with subpar alternatives posing numerous severe risks related both directly towards national safety as well counterintelligence operations.” The dangers posed by using telemessage Archiver should not be underestimated.”