• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup

2

The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting

3

Current price of oil as of June 23, 2026

1

After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup

2

The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting

3

Current price of oil as of June 23, 2026
TechFortune Global Forum

Memo Claims Russia Hacked This Secure Messaging App

Jeff John Roberts
By
Jeff John Roberts
Jeff John Roberts
Editor, Finance and Crypto
Down Arrow Button Icon
Jeff John Roberts
By
Jeff John Roberts
Jeff John Roberts
Editor, Finance and Crypto
Down Arrow Button Icon
January 11, 2017, 10:16 AM ET
Illustrations Of Popular Mobile Apps And Social Media Sites
A man is seen as a silhouette as he checks a mobile device whilst standing against an illuminated wall bearing Telegram's logo in this arranged photograph in London, U.K., on Tuesday, Jan. 5, 2016.Photograph by Chris Ratcliffe — Bloomberg via Getty Images
Add Fortune on Google for similar content.

A sensational—and very much unverified—memo about Russian attempts to compromise President-elect Donald Trump includes new information about the Kremlin’s cyber warfare efforts, including a claim the Kremlin successfully broke into a popular messaging app.

The app, known as Telegram, is popular among dissidents and others who value its ability to send text messages in an encrypted fashion. The encryption feature means that spies or law enforcement are unable to read messages they intercept.

But according to the author of the memo, who is alleged to be a former British intelligence officer, the Russian spy service FSB found a way around the encryption feature. Here is the relevant paragraph (my emphasis):

In terms of other technical IT platforms, an FSB cyber operative flagged up the “Telegram” enciphered commercial system as having been of especial concern and therefore heavily targeted by the FSB, not least because it was used frequently by Russian internal political activists and oppositionists. His/her understanding was that the FSB now had successfully cracked this communications software and therefore it was no longer secure to use.

The passage about Telegram is included among several paragraphs describing Russian cyber efforts to hack Western political and commercial targets. The memo was circulated among U.S. intelligence agencies, and reportedly shown to President Barack Obama and Trump, but its claims have not verified and its reliability is very much in dispute.

A Telegram spokesman told Business Insider on Wednesday, “We think the report is likely to be fake.”

If the claim Telegram was hacked is true, it would not be the first such breach. Last August, cyber researchers reported that the Iranian government compromised Telegram by intercepting SMS codes the company sent to users who wanted to activate the device. The memo does not say if the Russian spy service used a similar method.

Get Data Sheet, Fortune’s technology newsletter.

The fuss over Telegram reflects the growing importance of secure messaging tools. In the last year, Facebook’s WhatsApp (FB) also rolled out end-to-end encryption, while Apple (AAPL) offers security features that make newer versions of its iPhone and iMessage system virtually impossible to hack.

Meanwhile, the gold standard for secure communications continues to be an app called Signal, which is highly regarded for the strength of its cryptography and the fact it preserves almost no data about its users. Signal recently said it has seen a spike in downloads since the U.S. Presidential election in November.

About the Author
Jeff John Roberts
By Jeff John RobertsEditor, Finance and Crypto
LinkedIn iconTwitter icon

Jeff John Roberts is the Finance and Crypto editor at Fortune, overseeing coverage of the blockchain and how technology is changing finance.

See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

Institute's Global Conference at the Beverly Hilton Hotel,on May 6, 2024 in Beverly Hills, California.
RetailSpaceX
Elon Musk was the world’s first trillionaire for 12 days
By Eva RoytburgJune 24, 2026
1 hour ago
President Donald Trump pictured in September 2025 signing an executive order that overhauled the H-1B visa program.
EconomyImmigration
Trump’s international student crackdown kicked off a domino effect that could shave nearly $500 billion off the economy
By Tristan BoveJune 24, 2026
3 hours ago
How Home Depot is rebuilding retailing with AI
NewslettersCIO Intelligence
How Home Depot is rebuilding retailing with AI
By John KellJune 24, 2026
4 hours ago
bob
AIbooks
Robert Wright sees an ‘earthquake’ coming from AI that goes far beyond jobs: ‘cultural, political, personal, family, psychological’
By Nick LichtenbergJune 24, 2026
5 hours ago
A man wearing a red and black jacket and a red hat walks down a hallway lined with servers.
InnovationChina
For the first time since 2017, it’s China, not the U.S., that has the world’s most powerful supercomputer
By The Associated PressJune 24, 2026
5 hours ago
Jack Schlossberg, Kennedy scion and sardonic social media star, loses in bid for New York state assembly
PoliticsPolitics
Jack Schlossberg, Kennedy scion and sardonic social media star, loses in bid for New York state assembly
By The Associated Press, Danny Peltz and Anthony IzaguirreJune 24, 2026
6 hours ago

Most Popular

After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup
Success
After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup
By Orianna Rosa RoyleJune 23, 2026
1 day ago
The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting
Economy
The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting
By Jacqueline MunisJune 24, 2026
14 hours ago
Current price of oil as of June 23, 2026
Personal Finance
Current price of oil as of June 23, 2026
By Joseph HostetlerJune 23, 2026
1 day ago
Current price of gold as of June 23, 2026
Personal Finance
Current price of gold as of June 23, 2026
By Danny BakstJune 23, 2026
1 day ago
Texas and Charlotte used to build huge McMansions—now they're copying the California design tricks they once mocked
Real Estate
Texas and Charlotte used to build huge McMansions—now they're copying the California design tricks they once mocked
By Sydney LakeJune 22, 2026
2 days ago
Markets tumble worldwide as Fed resets expectations: $400 billion wiped off SpaceX stock
Banking
Markets tumble worldwide as Fed resets expectations: $400 billion wiped off SpaceX stock
By Jim EdwardsJune 23, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.