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Deprogit Blog

Insights, updates, and practical guides from our engineering team.

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IT Services & Infrastructure • October 31, 2026 • 5 min read

Email Authentication Architecture: Implementing SPF, DKIM, and DMARC

A technical engineering guide to implementing email authentication: configuring DNS TXT records, DKIM key selectors, and DMARC policy enforcement.

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Security • October 31, 2026 • 6 min read

Authentication Security: Passwords, Passkeys, and Multi-Factor Authentication

A technical evaluation of modern authentication methods: comparing traditional passwords, SMS OTP, TOTP tokens, and cryptographic FIDO2/WebAuthn passkeys.

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Web & Software • October 31, 2026 • 5 min read

HTTPS and TLS Architecture: Cryptography, Handshakes, and PKI

A technical deep-dive into HTTPS and TLS 1.3: asymmetric key exchange, symmetric encryption, the 1-RTT handshake, X.509 PKI, and HSTS enforcement.

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Cybersecurity News & Trends • October 31, 2026 • 6 min read

Phishing-Resistant MFA: The Industry Transition to FIDO2 and Passkeys

A technical engineering analysis of phishing-resistant authentication: evaluating FIDO2/WebAuthn standards, cryptographically bound origins, and SIM swapping.

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