WPA vs WPA2: Key Security Differences Explained
WPA (Wi-Fi Protected Access) is the older security protocol; WPA2 is its successor, using stronger AES encryption instead of the TKIP cipher.
People confuse them because both appear in router menus as “WPA/WPA2,” making it seem like one setting. Also, device prompts rarely explain which is active, so users assume the combo label is “good enough.”
Key Differences
WPA relies on TKIP, vulnerable to replay attacks. WPA2 mandates AES and CCMP, closing those holes. WPA2 also adds PMK caching for faster, safer roaming.
Which One Should You Choose?
Always pick WPA2 (or WPA3 if offered). Disable mixed-mode “WPA/WPA2” to force AES-only, eliminating downgrade attacks and securing every packet.
Is WPA still safe for guest networks?
No—guest traffic can be intercepted; use WPA2 with a separate VLAN.
Does WPA2 slow older devices?
Negligible on 2006+ hardware; AES is now hardware-accelerated.