Attending #CYBERUK26 April 21-23 or local to Glasgow? Join our upcoming happy hour 🍻 where we'll have (mini) golf , grub, and good conversation! 🔗 info.greynoise.io/cyberuk-happ... #CyberSecurity #ThreatIntel

21 IPs generated nearly half of all RDP scanning on the internet in 48 hours. Then vanished — for the second time in 30 days. 🔗 www.greynoise.io/blog/ip-addr... #ThreatIntel #RDP #CyberSecurity #InfoSec #ThreatHunting

🚨We just shipped C2 Detection. Compromised edge devices call home to attacker infrastructure. The evidence is in your outbound logs...most teams just can’t see it. Now they can. 👀 Learn more ⬇

GreyNoise is on the move 🌍 Next up: CrowdTours (8 cities), Glasgow + Tampa It’s all in the March Noiseletter 🗞️ + fresh research (more coming soon 👀)

New GreyNoise Report: 39% of unique IPs targeting the edge come from home internet connections. They are everywhere, briefly — 78% appear at most twice before rotating. The rotation rate makes feed-based IP reputation structurally ineffective against this traffic. 🔗 www.greynoise.io/resources/in...

GreyNoise is headed to 🇸🇪 Stockholm for CrowdStrike #CrowdTour2026 on 🗓️ April 15th. Attending the event or local to the area? We’d love to connect. 🔗 Book a dedicated time to meet with our team here: lnkd.in/e4_FA-7h #CyberSecurity #CrowdStrike #GreyNoise #ThreatIntel #Stockholm

NEW: GreyNoise At The Edge Intel Brief (March 23-30) 187,998,900 sessions. 100 top source IPs. Daily volumes surged 4x mid-week as at least 4 new scanning operations activated simultaneously. Here's what we found: 🔗 www.greynoise.io/resources/at...

GreyNoise is proud to be sponsoring the CrowdStrike CrowdTour across 8 cities! 🌏 We’re excited to highlight how our integration with Falcon Next-Gen SIEM helps SOC teams stop chasing ghosts and start catching real threats. 👇Book a meeting with us here: info.greynoise.io/crowdtour-20...

Last week, half of all new scanning IPs observed by GreyNoise geolocated to Hong Kong. A quarter-million never completed a TCP handshake. The ones that did were scanning MySQL, SSH, SMB, and RDP across 20+ countries. One of these is the signal. The other is noise. www.greynoise.io/blog/ghost-f...

NEW: GreyNoise At The Edge Intel Brief (Mar 16–23) 200,886,675 sessions. 101 unique source IPs. Here's what we found: www.greynoise.io/resources/at...

New GreyNoise At The Edge brief: The internet's scanning infrastructure is reorganizing. UCLOUD (HK) surged +578% to become the #1 scanning ASN, now 15.6% of all observed traffic. Western providers declining simultaneously. 301.8M sessions. 439K IPs. Here's what we found.

Starting at the top of the hour! 🚨 Hope to see you there to break down all things State of the Edge with @andrewmorr.is, @hrbrmstr.dev + Shawn! There's still time to register 👉 info.greynoise.io/webinar/stat...

TOMORROW! 🚨 Join us for a fast-paced dive into the 2026 GreyNoise State of the Edge Report...from rogue residential botnets to 26-year-old CVEs still getting hammered. Save your spot and see what’s actually hitting the edge.

🚀 New GreyNoise + Google SecOps integrations are live. See which IPs scan everyone vs just you, now directly inside Google SecOps. 🧩 SIEM: Standardized ingestion, dashboards, YARA-L rules, and saved searches ⚡️ SOAR: v7.0 actions, webhooks, and playbooks to automate triage

Hey London! We are closing down day 1 at #ecrimecongress today + cant wait to see you tomorrow! If you're around, say hi to the team, watch a demo, and grab some great swag! 🔥

Edge attacks are evolving faster than your playbook. Join @andrewmorr.is, @hrbrmstr.dev + Shawn Smagh next Tuesday for a live breakdown of where edge targeting is concentrating, where defenses are failing, + what 162 days of internet-scale data says about your real exposure.

February was anything but quiet at GreyNoise, from our 2026 State of the Edge Report to new edge attack research, Ivanti + BeyondTrust deep dives, and a packed March of events, check it all out in this month's Noiseletter! 🚀

GreyNoise is now integrated across CrowdStrike Falcon. 🚀 Falcon users can bring GreyNoise IP classification into Next-Gen SIEM searches, Fusion SOAR playbooks, and Charlotte AI workflows to triage faster, cut background noise + prioritize real threats.

Here's a taste of what GreyNoise customers got in this week's At The Edge intelligence brief. 268M sessions. 540K unique IPs. Four findings that matter. Full brief: IOCs, attribution, recommendations. 🔗 www.greynoise.io/resources/at... greynoise.io/contact

Noise: analyzed. Security: certified. GreyNoise is now ISO 27001 certified 🔐 We spend our days tracking internet background noise and we hold ourselves to the same high security standards we expect from the ecosystem.

GreyNoise observed a coordinated campaign probing SonicWall firewalls to identify which devices have SSL VPN enabled — the prerequisite step before credential attacks. 4️⃣ infrastructure clusters, a commercial proxy service rotating thousands of IPs, and near-zero exploitation. This is target mapping.

🕵 What started as a simple "Hey, I keep seeing this string. Any ideas?" message kicked off an investigation finding a cryptostealing and database wiping operation. Follow the string in the latest GreyNoise Labs post: www.labs.greynoise.io/grimoire/202...

Join us today at 12pm ET for February’s GreyNoise University LIVE session, where you’ll get an overview of what’s new at GreyNoise, plus a live demo of our tools and latest product releases.

52% of RCE attempts came from IPs with no prior GreyNoise history. New research on where edge defenses fall short + what to do about it. #ThreatIntel #Cybersecurity #GreyNoise

This week's At the Edge: CLEAR is out — a preview of the intel brief GreyNoise customers get every week. 🔗 www.greynoise.io/resources/at... That's just the preview. greynoise.io/contact #ThreatIntel #CyberSecurity #GreyNoise

It took less than a day. A PoC for BeyondTrust CVE-2026-1731 hit GitHub, and GreyNoise immediately started seeing reconnaissance from multi-exploit actors hiding behind VPNs + custom tooling. See what our data reveals about who’s mapping targets + how.

Three campaigns. One has Cobalt Strike ready. RDP nearly quadrupled. A botnet picked up a new CVE. And someone built a Kubernetes cluster just to exploit n8n. A preview of what GreyNoise customers get every week. Full brief has the IOCs, attribution, and analysis.

We observed a 65% drop in global telnet traffic in 1 hour on Jan 14, settling into a sustained 59% reduction. 18 ASNs went silent, 5 countries disappeared, but cloud providers were unaffected. Our analysis of 51.2M sessions points to backbone-level port 23 filtering by a Tier 1 transit provider.

83% of observed Ivanti EPMM exploitation (CVE-2026-1281) traces to one bulletproof IP that isn't on any published IOC list. The IPs that are? VPN exits with zero Ivanti activity. We broke down who's actually doing this ⬇️ #Ivanti #ThreatIntel #CVE20261281 #InfoSec

Attackers are operating at machine speed + so should defenders. 🤖 Check out the Government Technology Insider article, where our Principal Intelligence Liaison, Shawn Smagh, shares what we’re seeing in the data and 4️⃣ steps to get to active defense at machine speed.

Check out this month's NoiseLetter for the latest on Ghostie + all things GreyNoise! 🗞️ www.greynoise.io/resources/no...

Two IPs now generate 56% of all CVE-2025-55182 exploitation traffic. One deploys cryptominers. The other opens reverse shells. We dug into the infrastructure. What we found goes back to 2020.

In 2025, 59 CVEs quietly flipped to “known ransomware use” in CISA’s KEV...no alerts, no fanfare. 🧐 We dug through a year of JSON to catch every silent flip and built an RSS feed so you don’t miss the next one. Read the blog + grab the feed 🗞️

👀 Seeing who’s poking Ivanti Connect Secure? GreyNoise just caught a ~100x spike in recon on CVE-2025-0282 featuring one loud AS213790 campaign and one sneaky botnet spread across 6K IPs. We broke down the infra + what defenders should do next. 👇

Join us tomorrow at 12 ET for 2026's first GreyNoise University LIVE! With a new co-host, David! Looking forward to seeing you there. 🪩

Most attacker behavior only makes sense over time. 🕰️ Recall brings time-series analysis to GNQL so you can see how scanning and exploitation evolved. See the timeline. Find the pattern.

Three campaigns. One fingerprint. React RCE, VPN brute forcing, and router scanning—all linked to the same infrastructure.→ 1.7M React attacks → 506K VPN targets → 3 IPs behind 1.8M router attempts This week's At The Edge preview: greynoise.io/contact

Check out @hrbrmstr.dev today on @huntress.com's Tradecraft Tuesday at 1pm ET to chat about all things #React2Shell. 🤘 🔗 www.huntress.com/upcoming-web...

New on the GreyNoise blog: We borrow from some unexpected fields, enzyme kinetics, species biodiversity models, astrophotography, to understand internet-wide scanning activity and measure what we might be missing. #GreyNoise #Cybersecurity

🚨 We are hiring across sales, alliances, and customer experience for our US + EMEA teams 🌍 See a role you'd crush? We would love to hear from you! 👉 Apply now: greynoise.io/careers #hiring #cybersecuritycareers

GreyNoise analyzed activity targeting exposed Ollama and LLM infrastructure, identifying SSRF abuse attempts and large-scale probing of LLM model endpoints. #GreyNoise #ThreatIntelligence #LLMSecurity

All internet traffic from Iran ceased in @greynoise.io one hour ago. Tier 1 dropped off two hours ago.

Ransomware starts with reconnaissance: we observed a recent large-scale scanning campaign validating exploitable systems, data that feeds the initial access market and shows up later in real attacks. 🕵️‍♀️ #GreyNoise #Ransomware #InitialAccess #IAB #Recon

Back from the holidays and afraid to open your inbox? Same. Open the latest NoiseLetter instead.

React2Shell Update – 7 January 2026 Full update & analysis ⬇️ #GreyNoise #React2Shell

New year, new opportunities? Check out our current openings for a new start in the new year! 🪩🎉 🔗 greynoise.io/careers

See ya'll in 10 ⏳

GreyNoise is tracking a coordinated credential-based campaign targeting Cisco SSL VPN and Palo Alto Networks GlobalProtect. #Cisco #PaloAltoNetworks #GreyNoise #VPN #CiscoSSLVPN #GlobalProtect #ThreatIntel

See you all TOMORROW at 12ET for our last GreyNoise University LIVE of the year! ✨

Update: Analyzing React2Shell payloads. Full breakdown from @hrbrmstr.dev 👇 #React2Shell #Nextjs #CVE202555182