NTLM, Kerberos, and LDAP Compared: Choosing the Right Auth Method for E-commerce

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A technical analysis published on DEV Community examines three widely used authentication protocols — NTLM, Kerberos, and LDAP — to help startups and cybersecurity beginners select the most secure option. NTLM, developed by Microsoft, uses a six-step challenge-response mechanism with hash-based password verification but is considered outdated and limited in encryption strength. Each protocol was evaluated across key dimensions including security strengths, use-case scenarios, known vulnerabilities, and practical limitations. The guide is aimed at those building or securing e-commerce environments where protecting user identities and data integrity is critical. Microsoft has largely deprecated NTLM in favor of more robust authentication standards, though it remains in use in some legacy and intranet environments.

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