The Cyber Exposure Score is a published 0–100 formula built only from publicly observable signals. How this is calculated.
Posture summary
Email authentication
SPF ✓ -all DMARC reject DKIM ✓ · Microsoft 365 DNSSEC ✗ 9/10 SPF lookupsDNS hygiene
3 nameservers single DNS provider CAA ✗ IPv6 ✓Web & transport hygiene
HTTPS redirect ? HSTS ✓ CSP ✗ 1 third-party script, 1 without an integrity hash no mixed content security.txt ✗TLS / certificate
TLS TLSv1.3 58d to expiry TLS 1.0/1.1 not acceptedSoftware age
1 JavaScript library with published issues no server software version visible to compare a distribution may still patch server software; a library issue depends on how it is usedInternet exposure
0 open ports 0 KEV 1 version matchBreach metadata
0 public breaches on medusalocker leak siteDomain & hosting
148 public hostnamesAlso analysed: www.dian.gov.co
dian.gov.co and www.dian.gov.co each answer on their own, so both are covered. The domain-level findings above apply to both; these are www.dian.gov.co's own website checks.
score 70/100 · poor TLS TLSv1.3 58d to expiry HTTPS redirect ✓ HSTS ✓ CSP ✗ 3 open ports 1 KEVSoftware versions inside a published affected range (1, 1 known-exploited)
The public response carried a version for these products, and NVD publishes an affected range that contains it. This is not proof the software is unpatched — a distribution backport keeps the original version string while carrying the fix, so a fully patched build can appear here. Both halves of the comparison are public and checkable.
| CVE | Detected | Published affected range |
|---|---|---|
| CVE-2020-11023 KEV | jQuery 3.4.1 | >= 1.0.3 and < 3.5.0 |
Ransomware leak-site listings (1)
This domain is named on the public leak site of a ransomware group. A leak-site post is a claim published by the group — not a verified fact, and not a statement by this organization. Groups list victims who did not pay, overstate what they hold, and occasionally name the wrong company. What is certain is that the listing itself is public.
| Group | Listed | Sector |
|---|---|---|
| medusalocker | 2026-11-04 | — |
Leak-site postings are collected here from 2026-07-30 onwards; an earlier listing would not appear above.
Source: Ransomware.live
Public attack surface (148 hostnames in Certificate Transparency)
Hostnames this organization published in public TLS certificates. Passive OSINT — nothing was scanned; a wildcard certificate is in use, so the real footprint may be larger.
From the names alone: 2 remote access or sign-in, 0 admin tools, 1 non-production.
The hostname inventory — which forgotten hosts exist and where — is part of the complete audit for this domain.
Lookalike domains (8 registered of 74 checked)
Registered permutations of this domain. Existence is a fact, not an accusation — ownership and intent are not assessed. Those able to receive mail are the ones usable for invoice fraud and phishing. The Risk score (0–100) is a published formula weighing mail capability, registration age, spelling, what the homepage shows and phishing-feed hits, reduced when a name looks brand-owned (same registrar/nameservers, a redirect to this domain) or merely parked. How this is calculated.
| Domain | Type | Mail-capable | Registered | Risk |
|---|---|---|---|---|
| dian.com | tld | yes | — | 48 high |
| dian.eu | tld | yes | — | 48 high |
| dian.info | tld | yes | — | 48 high |
5 further registered lookalike(s), 7 of them able to receive mail. The full list, with mail capability for each, is part of the complete audit.
Recommendations
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mediumEnable DNSSEC
DNSSEC signing was not detected for this domain.
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criticalConfirm software versions that fall inside a published affected range
The public response carried a version for 2 detected product(s), and 1 published CVE range contains what we read. jQuery 3.4.1 falls inside the range published as affected by CVE-2020-11023 (>= 1.0.3 and < 3.5.0). 1 is on CISA's known-exploited list, meaning exploitation has been observed in the wild. This is an observation about a version string, not proof the software is unpatched: a distribution backport keeps the original version while carrying the fix. Check the build you are actually running, and patch or upgrade whatever is genuinely inside the range.
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criticalTreat data published on a leak site as disclosed
This domain is named on medusalocker's public leak site on 2026-11-04. A leak-site post is a claim published by the group, not a verified fact — but the post itself is public, and if it is accurate the data is already out. Confirm the claim, then work from the assumption of disclosure: rotate every credential that touched the affected systems, invalidate active sessions, and check your notification duties under GDPR Art. 33/34.
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criticalReset credentials seen in infostealer logs
Public infostealer telemetry associates 454 employee credential set(s) with this domain — passwords captured from infected devices, which bypass password policy and often session-hijack past MFA. The most recent dates from 2026-10-08. Most commonly RedLine. Force a reset for the affected services, invalidate active sessions, and check the devices themselves.
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mediumReview third-party credential exposure
386 credential set(s) for third-party services used by this domain appear in the same telemetry. Supplier and SaaS accounts are a common lateral path.
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mediumStrengthen password requirements
85% of the exposed employee passwords analysed rate as weak or very weak. Raise minimum length and screen new passwords against breach lists.
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highMonitor lookalike domains
7 registered lookalike domain(s) can receive mail, which is what makes them usable for invoice fraud and credential phishing. Monitor them and consider defensive registrations.
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mediumReview the public subdomain footprint
148 hostnames for this domain appear in public Certificate Transparency logs. Retire forgotten hosts — stale subdomains are a common entry point and a takeover risk.
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lowUpdate JavaScript libraries with published issues
jQuery 3.4.1: these versions have publicly listed issues. Whether they can be used against this site depends on how it calls them; updating is usually the quicker answer.
Sources: Ransomware.live · Have I Been Pwned (CC BY 4.0) · Shodan InternetDB · CISA KEV catalog · NVD · FIRST EPSS · CVSS-BT · Retire.js (Apache-2.0)
This product uses the NVD API but is not endorsed or certified by the NVD.
Refresh this report
Run a fresh free report for dian.gov.co: live results, every fix in priority order and a PDF to share. The complete audit adds the evidence and the full lists behind each finding.
Open the free reportAll information is aggregated from public sources for awareness only and does not constitute an accusation or a security assessment. No personal data or credentials are published.