Dev.to
7/9/2026

TLS Interception: How Corporate Proxies Read Your Encrypted Traffic
Short summary
A detailed technical explainer on how corporate TLS interception works: organizations install a private root CA on managed devices, proxies mint on-the-fly certificates, and all traffic becomes plaintext at the middlebox. The article cites a 2017 NDSS study showing most interception weakens cryptography, US-CERT alerts, the Lenovo Superfish incident, and Kazakhstan's government-mandated certificate program. Not AI-related but a strong security and privacy resource.
- •TLS interception relocates the endpoint to a proxy rather than breaking encryption
- •2017 NDSS study found most middleboxes negotiate weaker cryptography than browsers offer
- •Real-world abuses include Lenovo Superfish adware and Kazakhstan's national certificate mandate
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