SECURITY REPORT · EXTENSHI SCAN
Posteo SMIME
Chrome extension·by Posteo e.K.
68
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue
How it ranks
Posteo SMIME's safety score vs every other extension we've scanned
Globally
11%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,238 extensions
In Make Chrome Yours
9%of make chrome yours extensions carry more risk
Riskier ←→ Safer
Ranked against 25,376 make chrome yours extensions
Findings
34
median 9Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
2
median 2Declared in manifest
Active users
274
median 18vs category median
Findings breakdown
Automated security signal · 34 distinct issues across 6 severities
34
distinct issues
detected
detected
Critical13%
High13%
Needs Review00%
Medium1956%
Low412%
Info926%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
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Scan performed by extenshi.io · Aug 19, 2026
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