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Here's How eFail Attack Works Against PGP and S/MIME Encrypted Emails

Here's How eFail Attack Works Against PGP and S/MIME Encrypted Emails
May 14, 2018
With a heavy heart, security researchers have early released the details of a set of vulnerabilities discovered in email clients for two widely used email encryption standards—PGP and S/MIME—after someone leaked their paper on the Internet, which was actually scheduled for tomorrow. PGP and S/MIME are popular end-to-end encryption standards used to encrypt emails in a way that no one, not even the company, government, or cyber criminals, can spy on your communication. Before explaining how the vulnerability works, it should be noted that the flaw doesn't reside in the email encryption standards itself; instead, it affects a few email clients/plugins that incorrectly implemented the technologies. Dubbed eFail by the researchers, the vulnerabilities, as described in our previous early-warning article , could allow potential attackers to decrypt the content of your end-to-end encrypted emails in plaintext, even for messages sent in the past. According to the paper released

Buggy Microsoft Outlook Sending Encrypted S/MIME Emails With Plaintext Copy For Months

Buggy Microsoft Outlook Sending Encrypted S/MIME Emails With Plaintext Copy For Months
Oct 12, 2017
Beware, If you are using S/MIME protocol over Microsoft Outlook to encrypt your email communication, you need to watch out. From at least last 6 months, your messages were being sent in both encrypted and unencrypted forms, exposing all your secret and sensitive communications to potential eavesdroppers. S/MIME, or Secure/Multipurpose Internet Mail Extensions, is an end-to-end encryption protocol—based on public-key cryptography and works just like SSL connections—that enables users to send digitally signed and encrypted messages. According to a security advisory published by SEC Consult earlier this week, a severe bug (CVE-2017-11776) in Microsoft Outlook email client causes S/MIME encrypted emails to be sent with their unencrypted versions attached. When Outlook users make use of S/MIME to encrypt their messages and format their emails as plain text, the vulnerability allows the seemingly encrypted emails to be sent in both encrypted as well as human-readable clear text f

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Lavabit — Encrypted Email Service Once Used by Snowden, Is Back

Lavabit — Encrypted Email Service Once Used by Snowden, Is Back
Jan 21, 2017
Texas-based Encrypted Email Service ' Lavabit ,' that was forced to shut down in 2013 after not complying with a court order demanding access to SSL keys to snoop on Edward Snowden's emails , is relaunching on Friday. Lavabit CEO Ladar Levison had custody of the service's SSL encryption key that could have helped the government obtain Snowden's password. Although the FBI insisted it was only after Snowden's account, that was the key to the kingdom that would have helped the FBI agents obtain other users' credentials as well. But rather than complying with the federal request that could compromise the communications of all of its customers, Levison preferred to shut down his encrypted email service, leaving its 410,000 users unable to access their email accounts. Now, Levison has announced that he is reviving Lavabit with a new architecture that fixes the SSL problem — which according to him, was the biggest threat — and includes other privacy-enhancin

The Best Way to Send and Receive End-to-End Encrypted Emails

The Best Way to Send and Receive End-to-End Encrypted Emails
Mar 18, 2016
How many of you know the fact that your daily e-mails are passaged through a deep espionage filter? This was unknown until the whistleblower Edward Snowden broke all the surveillance secrets, which made privacy and security important for all Internet users than ever before. I often get asked "How to send encrypted email?", "How can I protect my emails from prying eyes?" and "Which is the best encrypted email service?". Although, there are a number of encryption tools that offers encrypted email service to ensure that no one can see what you are sending to someone else. One such tool to send encrypted emails is PGP ( Pretty Good Privacy ), an encryption tool designed to protect users' emails from snooping. However, setting up a PGP Environment for non-tech users is quite a difficult task, so more than 97% of the Internet users, including government officials, are still communicating via unencrypted email services i.e. Gmail, Ya

ProtonMail Paid Hackers $6000 Ransom in Bitcoin to Stop DDoS Attacks

ProtonMail Paid Hackers $6000 Ransom in Bitcoin to Stop DDoS Attacks
Nov 06, 2015
The Geneva-based encrypted email service ProtonMail was forced to pay a  Ransom of almost $6,000 to stop sustained Denial-of-service (DDoS) attacks that have knocked its service offline since Tuesday. ProtonMail – a full, end-to-end encrypted email service that launched last year – has been dealing with, what it called, the extremely powerful DDoS attack, and is still unavailable at the time of writing. ProtonMail Paid $6,000 to Stop DDoS In an official statement posted on a WordPress blog Thursday, officials of ProtonMail said the powerful DDoS attack by an unknown group of hackers forced them to pay 15 Bitcoins (about $5,850) in exchange for them halting the assault. However, even after paying the ransom amount, the crippling DDoS attacks continued to the ProtonMail service. DDoS Attack Continues Even After Paying Ransom ProtonMail officials said, "We hoped that by paying [ransom], we could spare other companies impacted by the [DDoS] attack again

Signal 2.0 — Free iPhone App for Encrypted Calls and Texts

Signal 2.0 — Free iPhone App for Encrypted Calls and Texts
Mar 03, 2015
An open source software group, Open Whisper Systems , has announced the release of Signal 2.0 — the second version of its free and open source messaging application for iPhone and iPad users. Signal  app is specifically designed to make secure and easy-to-use encrypted voice calling. But that's what the application was providing in its previous release introduced last July with  Signal 1.0 . Apple's iMessage also provides encrypted communication, but it was challenged by security researchers in 2013, revealing that  Apple controls the key infrastructure  and could, in turn, be compelled to change a key anytime they want, and read the content of your messages. But there was no way to send secure messages from an iPhone iMessage to an Android phone, or vice versa, unless you signed up for a monthly subscription plan and got the person you wanted to communicate with to sign up for it too. GAME CHANGER: SIGNAL 2.0 Signal 2.0 lets you send end-to-end encrypted messages to us

End-to-End Encryption for Yahoo Mail Coming Next Year

End-to-End Encryption for Yahoo Mail Coming Next Year
Aug 08, 2014
Today at Black Hat 2014 hacking conference, Yahoo! Chief Information Security Officer Alex Stamos announced that the company will start giving its consumers the option of end-to-end encryption in its Mail service by next year. Google showed off a PGP-based encryption plugin for Gmail back in June. The Purple-hued company will offer encryption via a modified version of the same End-to-End browser plug-in that Google uses for PGP in Gmail, Alex Stamos told the audience at his talk titled Building Safe Systems at Scale - Lessons from Six Months at Yahoo. The PGP plugin will be native in mobile apps allowing Gmail and Yahoo mail to easily exchange encrypted email. Infact, the email providers themselves won't be able to decrypt messages exchanged between its users. Only senders and recipients will be able to read the messages. In short, it means that Yahoo email users can reportedly send safe and secure messages between Yahoo users and also Gmail adherents without fear, wh

ProtonMail: 'NSA-Proof' End-to-End Encrypted Email Service

ProtonMail: 'NSA-Proof' End-to-End Encrypted Email Service
May 26, 2014
The Edward Snowden revelations triggered a large-scale movement worldwide towards deploying encryption across the Internet for secure services, which is something the government agencies like NSA and GCHQ have targeted repeatedly, as exemplified by abruptly shutting down Lavabit , a Texas-based Encrypted Email Service. In response, a group of young developers at the European Organization for Nuclear Research (CERN) has launched a new email service which offers end-to-end encryption and securing communications that could put an end to government snooping and will keep away our personal data from prying eyes. PROTONMAIL - AN END-to-END ENCRYPTED EMAIL This new encrypted email service, called ProtonMail is a super-secure email service created in collaboration with the scientists from Harvard, the Massachusetts Institute of Technology and the European research lab CERN. ProtonMail offers a user-friendly experience with full "end-to-end" encryption . It encrypts the data on the browser
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