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#networksecurity

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P1Security

🎥 What is O-RAN, really?

O-RAN isn't just a buzzword — it's a structural shift in how we build radio access networks.

By moving away from proprietary, locked-in systems and toward open, cloud-native architectures, operators gain flexibility… but also inherit new risks.

At the beginning of this analysis, we lay the groundwork — defining what O-RAN is before unpacking the security implications throughout the session.

▶️ Watch the full webinar for the complete breakdown: app.getcontrast.io/register/p1

#ORAN#TelecomSecurity#5GSecurity
The Zeek Network Security Monitor

Coming in Zeek 8: More detailed cluster metrics 😮

Prometheus and telemetry.log now report per-node event rates, topic-level breakdowns, and serialized event sizes.

Learn more in our latest newsletter. It's worth a look if you're planning to upgrade.

community.zeek.org/t/zeek-news

Zeek · Zeek Newsletter - Issue 52 - June 2025Welcome to the Zeek Newsletter In this Issue: Reminders Zeek Tip of the Month: getenv Function Community Call Recap Development Updates Ecosystem News Package Updates Get Involved [TL;DR] Zeek 8 development is charging ahead with pluggable connection keys, improved cluster metrics, and IPv6 support for ZeroMQ. The Zeek Project Survey 2025 is live! Please fill it out and share it with other users. Plus, catch up on fresh ecosystem news from Security Onion and Malcolm, and don’t forget to ...
#Zeek#OpenSource#NetworkSecurity
The Zeek Network Security Monitor

Zeek 8.0 is just around the corner, and we're excited to share pluggable connection keys. You can now customize how Zeek defines a connection beyond the classic 5-tuple. Want to key by VLAN IDs or VXLAN VNIs? You can write your own plugin to do it.

Find the docs and tutorial here: community.zeek.org/t/zeek-news

Zeek · Zeek Newsletter - Issue 52 - June 2025Welcome to the Zeek Newsletter In this Issue: Reminders Zeek Tip of the Month: getenv Function Community Call Recap Development Updates Ecosystem News Package Updates Get Involved [TL;DR] Zeek 8 development is charging ahead with pluggable connection keys, improved cluster metrics, and IPv6 support for ZeroMQ. The Zeek Project Survey 2025 is live! Please fill it out and share it with other users. Plus, catch up on fresh ecosystem news from Security Onion and Malcolm, and don’t forget to ...
#Zeek#NetworkSecurity#OpenSource
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Kevin Karhan :verified:

@VXShare @StarkRG @jay @vildis @vxunderground OFC, if their corporate firewall didn't blocklist your domain, most #MITM-based "#NetworkSecurity" solutions and "#EndpointProtection" will checksum files and instantly yeet them into the shadow realm.

  • Researchers should OFC only run those said malware only for research purposes and on #airgapped, sanctioned systems but they need to get their hands on them in the first place.

And lets be honest: Like with chemistry and medicine, one wants to have a supplier that isn't shady af but actually transparent.

  • The "alternative" would be to go into some "dark corners" and risk getting something else entirely.
Kevin P. Fleming

Over the past few days I've installed some blocklists into the PowerDNS Recursor instances on our home network. This is similar to what a Pi-Hole does, but without needing a second hop for all the DNS queries to pass through.

Today, with some guidance from the lovely community in the PowerDNS IRC channel, I set up logging so I'll be able to see which queries were blocked (the requesting address and the QNAME). I've been watching it a bit for about an hour, and it's rather shocking. Opening the Slack app on my phone, which does not display any advertisements, triggered a flurry of DNS queries for various ad-related services.

It will be interesting watching this over the next week or two, partially to see if anything we regularly use is actually broken or even changed at all, and to see what the volume is.

#DNS#PowerDNS#NetworkSecurity
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