Welcome to this week’s edition of the Threat Source newsletter. For my fianceé’s 30 th birthday, I took her on a weekend trip to Shenandoah National Park – a favorite of ours since we went to a wedding there several years back. We’ve done several incredible hikes over the years, but one in particular had always loomed over my head: Old Rag, a 9.3 mile circuit hike that’s largely considered the most difficult in Virginia. I've always been warned that at the beginning and end, you hate Old Rag. For the first 2.6 miles, you’re hiking a steep climb on a dirt road, with lots of switchbacks, and plenty of places where you turn a corner and groan, because there’s an even steeper section ahead. This part was pretty torturous, because 1) I felt like my heart was going to explode out of my chest, 2) I couldn’t breathe, and 3) several times, there was a family we passed as they were taking a break, then WE took a break and THEY passed US, and so on and so forth. So awkward. Finally, we reached the fun part: a mile-long rock scramble, where you're squeezing through (and down) narrow rock crevices, cramming your boots to desperately find any leverage to propel yourself upward, and using all your upper body strength to control your descent. This was definitely the most fun part, although my hands and knees were sore by the end. After hiking for hours, you reach the top and realize it was all worth it, because the summit has a a spectacular vie— ... That’s what we get for being excited to hike in overcast weather. Well, at least the way back down is fun— oh wait, four miles downward on a fire trail, crushing your toes in the front of your hiking boots? Yike. It may sound like I’m complaining a lot about this hike, but it was genuinely the most fun one that I’ve done to date. By the time I was freshly showered and drinking an iced coffee in Culpeper, I was gushing about when we’d go back. There’s a really good tie-in to cybersecurity somewhere here. Ah, got it. Everyone has had those uphill hike phases with the endless documentation, patching, and alerts that keep you up at night. You’re waiting for the misery to end and hoping that around the next corner, you’ll see a sign that you’re almost out of the woods. Bruised and out of breath, you finally arrive at the exciting parts: a complex project that finally comes together, the thrill of stopping an attack, or a feeling of pride when someone you're mentoring gets a new certification. Maybe the payoff is something completely unexpected. Those moments definitely don’t erase the exhaustion — you're still sore and bruised, and will be for days — but they do remind you why you started in the first place. The one big thing Talos released our Q2 2026 Incident Response Trends report , which showed a massive spike in authentication abuse and sophisticated phishing tactics. Phishing drove over half of all engagements, with attackers leveraging QR codes and advanced platforms like ARToken to bypass multi-factor authentication (MFA). Additionally, ransomware operators are increasingly weaponizing legitimate remote management tools like MeshAgent and Zoho Assist to establish stealthy, persistent access. Why do I care? Standard email gateways and basic MFA are no longer enough to stop adversaries from bypassing traditional defenses. By abusing legitimate administrative tools and trusted cloud infrastructure, threat actors can easily blend malicious traffic with normal network activity to remain undetected before deploying ransomware. Furthermore, the continued targeting of health care and public administration highlights a deliberate focus on organizations with zero tolerance for downtime. So now what? Organizations must transition from push- and SMS-based MFA to phishing-resistant methods like FIDO2 or hardware security keys. Defenders should also shift to behavior-based monitoring, specifically hunting for unauthorized instances of administrative tools. Finally, configure centralized logging with at leas…

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