• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

 | 

Sophos fixed two critical Sophos Firewall vulnerabilities

 | 

French Authorities confirm XSS.is admin arrested in Ukraine

 | 

Microsoft linked attacks on SharePoint flaws to China-nexus actors

 | 

Cisco confirms active exploitation of ISE and ISE-PIC flaws

 | 

SharePoint under fire: new ToolShell attacks target enterprises

 | 

CrushFTP zero-day actively exploited at least since July 18

 | 

Hardcoded credentials found in HPE Aruba Instant On Wi-Fi devices

 | 

MuddyWater deploys new DCHSpy variants amid Iran-Israel conflict

 | 

U.S. CISA urges to immediately patch Microsoft SharePoint flaw adding it to its Known Exploited Vulnerabilities catalog

 | 

Microsoft issues emergency patches for SharePoint zero-days exploited in "ToolShell" attacks

 | 

SharePoint zero-day CVE-2025-53770 actively exploited in the wild

 | 

Singapore warns China-linked group UNC3886 targets its critical infrastructure

 | 

U.S. CISA adds Fortinet FortiWeb flaw to its Known Exploited Vulnerabilities catalog

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 54

 | 

Security Affairs newsletter Round 533 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

Radiology Associates of Richmond data breach impacts 1.4 million people

 | 

Fortinet FortiWeb flaw CVE-2025-25257 exploited hours after PoC release

 | 

Authorities released free decryptor for Phobos and 8base ransomware

 | 

Anne Arundel Dermatology data breach impacts 1.9 million people

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Security
  • Twitter now supports Encrypted Direct Messages, with some limitations

Twitter now supports Encrypted Direct Messages, with some limitations

Pierluigi Paganini May 11, 2023

Twitter is rolling out support for encrypted direct messages (DMs), the security feature will be initially available for the verified users.

Twitter is rolling out support for encrypted direct messages (DMs), the feature is initially limited to verified users or affiliates to a verified organization that are using the latest version of the app (iOS, Android, Web).

The latest version of Twitter apps (iOS, Android, Web) generates a couple of private and public keys for the device. The public key is automatically registered when a user logs into Twitter on a new device or browser;  the private key is stored exclusively on the device and Twitter doesn’t know it. The platform also uses a per conversation key that is used to encrypt the content of messages. The per conversation key is shared between participating devices using a classic PKI scheme based on the private-public key pairs of the sender and receiver.

“We employ a combination of strong cryptographic schemes to encrypt every single message, link, and reaction that are part of an encrypted conversation before they leave the sender’s device, and remain encrypted while stored on Twitter’s infrastructure.” reads the announcement published by Twitter. “Once messages are received by the recipient devices, they are decrypted so that they can be read by the user.”

Twitter announced plans to open-source our implementation, at this time Twitter has yet to disclose the method it is using to secure the messages. The company will release a technical analysis of the encryption process later this year.

To send and receive encrypted messages it is necessary that the recipient follows sender, or has sent a message to sender previously, or has accepted a Direct Message request from the sender before

Sending an encrypted message is quite simple, eligible users will see a toggle after clicking on the message icon to enable “encrypted” mode. Then they have to compose the message, select an eligible recipient, and click send.

Alternatively, users can send an encrypted message through the conversation settings page of an unencrypted conversation

  • Tap into an unencrypted conversation from inbox
  • Tap on  the information icon 
  • Select “Start an encrypted message”

In encrypted conversations, a lock icon badge appears on the avatar of the user you are talking to. The badged avatar shows up in both the inbox and conversation views.

 The conversation info page also displays the label “Messages are encrypted” at the top of encrypted conversations.

The feature is still in the development phase, the company said that there are the following limitations:

  • encrypted messages can only be sent to a single recipient, group conversations are not yet supported.
  • cncryption of media and other attachments are not supported yet.
  • currently, new devices cannot join existing encrypted conversations. 
  • users can only register a maximum of up to 10 devices to use encrypted direct messages (DMs).
  • currently, the company does not offer protections against man-in-the-middle attacks. 
  • logging out from Twitter, all messages including encrypted messages on user current device will be deleted.
  • forward secrecy is not supported, this means that if the private key of a registered device was compromised, an attacker would be able to decrypt all of the encrypted messages that were sent and received by that device. 

We are in the final!

Please vote for Security Affairs (https://securityaffairs.com/) as the best European Cybersecurity Blogger Awards 2022 – VOTE FOR YOUR WINNERS
Vote for me in the sections where is reported Securityaffairs or my name Pierluigi Paganini

Please nominate Security Affairs as your favorite blog.

Nominate Pierluigi Paganini and Security Affairs here here: https://docs.google.com/forms/d/e/1FAIpQLSepvnj8b7QzMdLh7vWEDQDqohjBUsHyn3x3xRdYGCetwVy2DA/viewform

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, encryption)


facebook linkedin twitter

encrypted direct messages encryption Hacking hacking news information security news IT Information Security Pierluigi Paganini Security Affairs Security News Twitter Twitter encrypted direct messages

you might also like

Pierluigi Paganini July 23, 2025
U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog
Read more
Pierluigi Paganini July 23, 2025
Sophos fixed two critical Sophos Firewall vulnerabilities
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

    Hacking / July 23, 2025

    Sophos fixed two critical Sophos Firewall vulnerabilities

    Security / July 23, 2025

    French Authorities confirm XSS.is admin arrested in Ukraine

    Cyber Crime / July 23, 2025

    Microsoft linked attacks on SharePoint flaws to China-nexus actors

    APT / July 23, 2025

    Cisco confirms active exploitation of ISE and ISE-PIC flaws

    Hacking / July 22, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT