The Visibility Paradox: Why 94% of Attacks Hide Behind Anonymized Infrastructure

Saw the new report on The Hacker News stating that 94% of incidents involve anonymized infrastructure and that teams are still fundamentally reactive. It really hit home.

We are drowning in telemetry—geolocation, reputation scores, vendor feeds—but attackers are getting smarter at obfuscation. They aren't just using Tor anymore; they are rotating through compromised residential IPs and cloud compute instances to bypass standard reputation checks.

I’ve been trying to move our team from purely reactive alert triage to proactive infrastructure profiling. We started correlating our internal logs with external ASN ownership data to detect when traffic is suddenly originating from hosting providers that we don't usually interact with.

For those struggling with the noise, here is a quick Python snippet to automate ASN lookup for a batch of IPs to help identify unexpected hosting providers:

import ipaddress
import subprocess

def get_asn(ip):
    # Using whois command line tool
    try:
        result = subprocess.run(['whois', ip], capture_output=True, text=True)
        if 'originAS' in result.stdout.lower():
            # Simple parsing for demo purposes
            line = [l for l in result.stdout.split('\n') if 'OriginAS' in l][0]
            return line.split(':')[1].strip()
    except Exception:
        return "Unknown"
    return "Unknown"

target_ips = ["203.0.113.45", "198.51.100.20"]
for ip in target_ips:
    print(f"{ip} -> {get_asn(ip)}")

The "Reactive" label is the real killer here. We can't just wait for the alert; we need to profile the infrastructure before it touches the crown jewels.

What strategies are you using to de-anonymize traffic? Are you relying more on packet-level fingerprinting (JA3/JA4) or focusing on identity context?