#email-security
28 stories taggedemail-security.
SonicWall Patches Critical Flaws in a Security Platform It Already Retired
Two vulnerabilities scored near-perfect danger ratings and could let criminals break into systems without a password. One of the affected products was officially shut down last October.
Your Email's Design Layer Can Steal Your Password. No Suspicious Attachment Required.
Security researcher Gareth Heyes found that CSS, the code responsible for how emails look on screen, can be turned into a data-theft tool inside popular webmail services. No malicious files. No links to click.
Your Email AI Assistant Could Be Turned Against You, Researchers Warn
Security researchers have shown how the AI chatbots built into modern email platforms can be hijacked to impersonate colleagues, steal account access, and set up financial fraud, all without sending a single suspicious link.
AegisAI Raises $36 Million to Fight AI-Generated Phishing Emails
A startup built by former Google security engineers says criminals now use artificial intelligence to craft personalised fake emails at scale. Its answer is an AI system that reads those emails back.
After Tycoon2FA Was Shut Down, Phishing Criminals Went Looking for New Tricks
Microsoft's Q2 2026 email threat report shows that busting a major phishing-for-hire service slashed attack volume by 92%, but criminals quickly pivoted to Microsoft Teams chats and automated email campaigns that hit tens of thousands of organisations in hours.
Russian Hackers Are Reading Your Email Just by Sending You One: Zimbra Zero-Day Explained
A Kremlin-linked crew tracked as LAUNDRY BEAR is exploiting CVE-2025-66376 in Zimbra webmail to steal 90 days of email the moment a victim opens a booby-trapped message.
Microsoft Exchange Online is Wrongly Locking Away Customer Mailboxes
A memory bug from an infrastructure change has been quarantining legitimate mailboxes since Sunday, blocking email and calendar access with no full-fix timeline yet.
What is phishing and how do you spot a phishing email?
Phishing is the most common way attackers steal credentials and money. Here is what the attack looks like and how to catch it before you click.
StrongestLayer Raises $4.1 Million to Build Email Security That Reasons, Not Just Recognises
The San Francisco startup says a third of today's email attacks slip past tools that only look for patterns they have seen before. Its new funding backs a different approach: software that judges intent.
Microsoft sets a hard stop for Exchange 2016 and 2019 security fixes
After October 2026, on-premises Exchange 2016 and 2019 servers get no more patches, even for customers paying for extended support.
Apple Patches Year-Old Hide My Email Bug That Leaked Real Addresses
A flaw in Apple's email-cloaking feature let real addresses appear in mail logs. The fix took over a year to ship.
Zimbra Patches Six Security Flaws, Including a Bug That Lets Strangers Run Commands on Your Email Server
The business email platform Zimbra has released a batch of fixes covering a serious command-injection flaw and five other vulnerabilities. No attacks in the wild have been confirmed, but the company is urging every customer to update immediately.
Over a Million Phishing Emails Used Hidden Text to Fool AI Security Filters
Researchers found that criminals are hiding innocent words inside malicious emails to confuse both traditional and AI-powered spam filters, and the technique is working.
Fake Emails Now Beat Software Flaws as the Number-One Way Ransomware Gets In
A Sophos survey of more than 2,000 organisations hit by ransomware finds that phishing and malicious emails now cause half of all attacks, while stolen passwords are defeating even multi-factor authentication at an alarming rate.
One Poisoned Email Can Rewrite What Your AI Assistant 'Remembers' About You
Researchers show how a single message can plant a false memory in an AI agent's long-term store, quietly steering its answers in every future chat.