Research

What is the threat intelligence life cycle, step by step?

The threat intelligence life cycle turns raw threat data into decisions: set goals, collect, process, analyze, share, get feedback. Here is how to run it.

What is the ping of death and does it still work?

The ping of death crashed old systems with an oversized, fragmented ICMP packet. Modern stacks reject it, but the lesson on length checks still applies.

What is the NXNSAttack and how do you protect DNS resolvers?

NXNSAttack abused how DNS resolvers follow referrals, causing floods of extra queries (CVE-2020-8616). Patch the resolver, as no workaround exists.

What is the KRACK attack and is WPA2 still safe to use?

KRACK is a 2017 set of WPA2 handshake flaws that let a nearby attacker decrypt some Wi-Fi traffic. Patch clients and access points to stay on WPA2 safely.

What is the DirtyCred exploit technique?

DirtyCred swaps low and high privilege kernel credential objects to turn ordinary Linux heap bugs into privilege escalation. Learn the idea and defenses.

What is structured data and why does it matter for security?

Structured data follows a defined format of fields and types, like tables or JSON. That makes it easier to validate and protect than free-form files.

What is smishing and how do you spot a scam text?

Smishing is phishing by text message. Look for urgency, odd links and requests for codes or payments, then verify through a channel you already trust.

What is shadow data and how do you find it?

Shadow data is sensitive information outside any inventory or owner, such as old copies and test dumps. Find it by mapping data, not just systems.

What is security service edge (SSE) and what does it include?

SSE is an industry term for cloud-delivered security that sits between users and the web, SaaS and private apps. Judge it by the controls, not the label.

What is scareware and how do you remove it?

Scareware uses fake virus alerts to push you into buying useless software or granting remote access. Close it safely, scan, and never call the number.

What does proactive cybersecurity look like in practice?

Proactive security means acting on known risks before attackers do. Four habits for security leaders: inventory, exploited first patching, owners, drills.

What is packet loss and how do you diagnose it?

Packet loss is when packets sent across a network never arrive. Measure it per hop, find the congested or faulty link, and watch TCP and VoIP effects.