Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Emerging Threat: (CVE-2026-21589) Atlassian Data Center Arbitrary File Access via Path Traversal

CVE-2026-21589 is an arbitrary file access flaw affecting most of Atlassian’s self-hosted Data Center product line. CISA classifies it as CWE-552, files or directories accessible to external parties. An unauthenticated remote attacker can read specific files inside the web application root directory. The vulnerability carries a CVSS v4.0 base score of 9.3 (Critical). Attack vector is network, attack complexity is low, and neither privileges nor user interaction are required.

Warning: Attackers Are Tricking Employees Into Sharing Malicious Calendar Invites

Researchers at Fortra are tracking a new variant of calendar phishing in which threat actors trick employees into sharing meeting links internally. The attackers pose as prospective customers and contact non-sales employees, asking to be directed to a sales representative in order to discuss a business opportunity. The attacker then sends the employee a meeting link to forward to a sales contact. The attack takes place as follows.

Certificate monitoring with TLS, chain, and post-quantum readiness

Most customers start CertKit with SSL host monitoring. On day one, you point CertKit at the systems you already run and get every certificate and when it expires. You start with confidence that you have everything under control. Then, you automate, letting CertKit take over the certificates as they need to be renewed. Each renewal is the last time you ever have to worry about that certificate.

How Aikido helps you meet SOC 2 Type 1 and Type 2

If you've ever gone through a SOC 2 audit, you know the drill. It’s weeks of screenshotting dashboards and chasing down evidence across some dozen tools, while hoping the auditor doesn't ask a follow-up question you can't answer. Fortunately, SOC 2 doesn't have to be that painful, especially if the tools you already use for security are generating the evidence for you as a byproduct of just doing their job. That's what Aikido Security can do for application and cloud security.

Five Ways AI Agents Actually Fail, and Why Most Security Programs Are Only Built for Two of Them

Most of the industry discourse on agentic AI risk has settled into a comfortable framing: agents get attacked the way models get attacked, through some form of prompt manipulation, and the fix is a better guardrail. I think that framing is dangerously incomplete, and I want to walk through five specific scenarios that make the case directly rather than abstractly. Two of them are manipulation. One exploits trust between agents rather than any single agent's behavior.

Continuous Attacker Emulation: Testing Controls Between Annual Assessments

Security controls are built to stop attackers, but most organizations only find out whether those controls actually work once a year, during a scheduled assessment. In the months between those engagements, configurations change, new tools get deployed, and remediation work from the last test either holds up or quietly fails without anyone noticing. Continuous attacker emulation exists to close that gap, giving security teams an ongoing read on their actual exposure rather than a single snapshot frozen in time.

Top 5 Antidetect Browsers for Web Scraping, Research, and Data Collection at Scale

Modern web setup needs strong anti-bot tools. These tools look at what comes in from the web, the browser settings, and what the canvas shows to find bots. People who work in company growth, data, and research often need to pull data from the web. For them, normal headless browsers like Puppeteer or Selenium are easy to spot. To get data many times, you will need tools that can hide your system details in several sessions at once.

5 Best Direct Mail APIs for Automated, Multi-Touch Campaigns

Email has triggers, sequences, and dashboards. For years, direct mail had a spreadsheet and a print deadline. A good direct mail API closes that gap: your software decides who gets a mailpiece and when, and the provider prints, mails, and tracks it. The catch is that "best" depends on the job. A product team embedding transactional notices needs something very different from a marketing team running three-touch campaigns across dozens of clients. I compared Postalytics, Lob, PostGrid, PCM Integrations, and Click2Mail on the factors that actually separate them.

The cybersecurity problem hiding in your later list

Let's be honest: Every IT team has that one thing. That ancient server that nobody wants to touch somehow still runs. That vulnerability that has been sitting in the remediation queue because there were more critical issues to handle, and then there's the active service account that was created for a temporary project three years ago. Or perhaps there's a security exception that was only supposed to last for 30 days and quietly became permanent. Nothing has exploded yet, so it is easy to leave it alone.