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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...
Apple macOS Bug Reveals Cache of Sensitive Data from Encrypted Drives

Apple macOS Bug Reveals Cache of Sensitive Data from Encrypted Drives

Jun 18, 2018
Security researchers are warning of almost a decade old issue with one of the Apple's macOS feature which was designed for users' convenience but is potentially exposing the contents of files stored on password-protected encrypted drives. Earlier this month, security researcher Wojciech Regula from SecuRing published a blog post , about the "Quick Look" feature in macOS that helps users preview photos, documents files, or a folder without opening them. Regula explained that Quick Look feature generates thumbnails for each file/folder, giving users a convenient way to evaluate files before they open them. However, these cached thumbnails are stored on the computer's non-encrypted hard drive, at a known and unprotected location, even if those files/folders belong to an encrypted container, eventually revealing some of the content stored on encrypted drives. Patrick Wardle, chief research officer at Digital Security, equally shared the concern, saying tha...
Your Risk Scores Are Lying: Adversarial Exposure Validation Exposes Real Threats

Your Risk Scores Are Lying: Adversarial Exposure Validation Exposes Real Threats

Mar 11, 2025Breach Simulation / Penetration Testing
In cybersecurity, confidence is a double-edged sword. Organizations often operate under a false sense of security , believing that patched vulnerabilities, up-to-date tools, polished dashboards, and glowing risk scores guarantee safety. The reality is a bit of a different story. In the real world, checking the right boxes doesn't equal being secure. As Sun Tzu warned, "Strategy without tactics is the slowest route to victory. Tactics without strategy is the noise before defeat." Two and a half millennia later, the concept still holds: your organization's cybersecurity defenses must be strategically validated under real-world conditions to ensure your business's very survival. Today, more than ever, you need Adversarial Exposure Validation (AEV) , the essential strategy that's still missing from most security frameworks. The Danger of False Confidence Conventional wisdom suggests that if you've patched known bugs, deployed a stack of well-regarded security tools, and passed the nec...
Feds Secretly Ran a Fake Encrypted Chat App and Busted Over 800 Criminals

Feds Secretly Ran a Fake Encrypted Chat App and Busted Over 800 Criminals

Jun 08, 2021
In an unprecedented sting operation, the U.S. Federal Bureau of Investigation (FBI) and Australian Federal Police (AFP) ran an encrypted chat service called ANoM for nearly three years to intercept 27 million messages exchanged between criminal gang members globally. Dubbed Operation Ironside (AFP), Operation Greenlight (Europol), and Operation Trojan Shield (FBI), the long-term covert probe into transnational and serious organized crime culminated in the arrests of 224 offenders on 526 charges in Australia, with 55 luxury vehicles, eight tons of cocaine, 22 tons of cannabis and cannabis resin, 250 firearms, and more than $48 million in various currencies and cryptocurrencies seized in raids around the world.  A total of more than 800 arrests have been reported across 18 countries, including New Zealand, Germany, and Sweden. Europol  called  it the "biggest ever law enforcement operation against encrypted communication." The communications allegedly involved plots to...
cyber security

The State of GRC 2025: From Cost Center to Strategic Business Driver

websiteDrataGovernance / Compliance
Drata's new report takes a look at how GRC professionals are approaching data protection regulations, AI, and the ability to maintain customer trust.
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...
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 encry...
How Searchable Encryption Changes the Data Security Game

How Searchable Encryption Changes the Data Security Game

Jul 29, 2024 Data Security / Encryption
Searchable Encryption has long been a mystery. An oxymoron. An unattainable dream of cybersecurity professionals everywhere. Organizations know they must encrypt their most valuable, sensitive data to prevent data theft and breaches. They also understand that organizational data exists to be used. To be searched, viewed, and modified to keep businesses running. Unfortunately, our Network and Data Security Engineers were taught for decades that you just can't search or edit data while in an encrypted state. The best they could do was to wrap that plaintext, unencrypted data within a cocoon of complex hardware, software, policies, controls, and governance. And how has that worked to date? Just look at the T-Mobile breach, the United Healthcare breach, Uber, Verizon, Kaiser Foundation Health Plan, Bank of America, Prudential… and the list goes on. All the data that was stolen in those breaches remained unencrypted to support day-to-day operations. It's safe to conclude that the way we...
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...
Researchers Find New Hack to Read Content Of Password Protected PDF Files

Researchers Find New Hack to Read Content Of Password Protected PDF Files

Oct 01, 2019
Looking for ways to unlock and read the content of an encrypted PDF without knowing the password? Well, that's now possible, sort of—thanks to a novel set of attacking techniques that could allow attackers to access the entire content of a password-protected or encrypted PDF file, but under some specific circumstances. Dubbed PDFex , the new set of techniques includes two classes of attacks that take advantage of security weaknesses in the standard encryption protection built into the Portable Document Format, better known as PDF. To be noted, the PDFex attacks don't allow an attacker to know or remove the password for an encrypted PDF; instead, enable attackers to remotely exfiltrate content once a legitimate user opens that document. In other words, PDFex allows attackers to modify a protected PDF document, without having the corresponding password, in a way that when opened by someone with the right password, the file will automatically send out a copy of the decry...
Peerio — End-to-End Encrypted Secure Messenger and File Sharing App

Peerio — End-to-End Encrypted Secure Messenger and File Sharing App

Jan 15, 2015
On one end, where governments of countries like U.K is criticizing end-to-end encryption and considering to ban the encrypted communication apps like Snapchat, CryptoCat, WhatsApp and Apple's iMessage. On the other hand, the Internet community has come up with a new and rather more secure encrypted communication app. Dubbed Peerio , an " encrypted productivity suite " designed to offer much more usable alternative to PGP email and file encryption, so that every individual user and business can encrypt everything from Instant Messages to online file storage. Peerio, released on Wednesday, is designed by 24-year-old Nadim Kobeissi – the creator of the end-to-end encrypted group messaging app Cryptocat and the encrypted file-sharing app MiniLock . " With Peerio everything you share or communicate with your team is secured with state-of-the-art encryption , and it's as easy as using Gmail. You don't need to learn to use it, " Kobeissi told Wired. ...
Cryptocat offers End-to End Encryption For Facebook Messenger

Cryptocat offers End-to End Encryption For Facebook Messenger

May 15, 2014
It's an era of Mass Surveillance, where Encryption has become more important today for all of us than any other time in the History. But the trouble is that Crypto programs are too hard for Non-Internet-Savvy to implement and use. Time is loudly announcing the need to switch to some alternatives that provide end-to-end encryption for communication between two devices in order to keep your personal data away from NSA's prying eyes and respect your Privacy . But, many services, including Facebook's messaging application, don't support encryption and therefore are weak in providing security of our online data, which could result in data breach either by cyber criminals or by our own Government under surveillance programs. Because Facebook's messaging application doesn't support end-to-end encryption, an Open-source and most popular crypto chat-encryption application called 'Cryptocat' has made it possible to chat with your Facebook friends and rel...
Twitter Finally Rolling Out Encrypted Direct Messages — Starting with Verified Users

Twitter Finally Rolling Out Encrypted Direct Messages — Starting with Verified Users

May 11, 2023 Encryption / Privacy
Twitter is officially beginning to roll out support for  encrypted direct messages (DMs)  on the platform, more than five months after its chief executive Elon Musk  confirmed  plans for the feature in November 2022. The "Phase 1" of the initiative will appear as separate conversations alongside existing direct messages on users' inboxes. Encrypted chats carry a lock icon badge to visually differentiate them. That said, the opt-in feature is currently limited to verified users or affiliates to a verified organization. It's also essential both the sender and recipient are on the latest versions of the Twitter apps across Android, iOS, and desktop web. Another criteria to send and receive encrypted messages is that the recipient must follow the sender, has sent a message to the sender in the past, or has accepted a direct message request from the sender at some point. While Twitter did not disclose the exact method it uses to secure the conversations, the company ...
Australia Passes Anti-Encryption Bill—Here's Everything You Need To Know

Australia Passes Anti-Encryption Bill—Here's Everything You Need To Know

Dec 07, 2018
Australia's House of Representatives has finally passed the "Telecommunications Assistance and Access Bill 2018," also known as the Anti-Encryption Bill , on Thursday that would now allow law enforcement to force Google, Facebook, WhatsApp, Signal, and other tech giants to help them access encrypted communications. The Australian government argues the new legislation is important for national security and an essential tool to help law enforcement and security agencies fight serious offenses such as crime, terrorist attacks, drug trafficking, smuggling, and sexual exploitation of children. Since the bill had support from both major parties (the Coalition and Labor), the upper house could vote in support of the Assistance and Access Bill to make it law, which is expected to come into effect immediately during the next session of parliament in early 2019. Although the new legislation does not properly clarify specifics around the potential power that the Assistance ...
Twitter is Testing End-to-End Encrypted Direct Messages

Twitter is Testing End-to-End Encrypted Direct Messages

May 08, 2018
Twitter has been adopting new trends at a snail's pace. But it's better to be late than never. Since 2013 people were speculating that Twitter will bring end-to-end encryption to its direct messages, and finally almost 5 years after the encryption era began, the company is now testing an end-to-end encrypted messaging on Twitter. Dubbed " Secret Conversation ," the feature has been spotted in the latest version of Android application package (APK) for Twitter by Jane Manchun Wong, a computer science student at the University of Massachusetts Dartmouth. End-to-end encryption allows users to send and receive messages in a way that no one, be it an FBI agent with a warrant, hacker or even the service itself, can intercept them. However, it seems like the Secret Conversation feature has currently been available only to a small number of users for testing. So, if you are one of those lucky ones, you will be able to send end-to-end encrypted Secret Conversation thro...
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