Question: Are WEP and WPA encryptions secure?
No! These 2 types of encryptions (WEP, WPA) are not secure anymore, the encryption key can be cracked by using aircrack, kismet or other cracking tools that you can download from Internet. Check out this on how to crack the WEP/WPA encryption key.
I would recommend you to use WPA2 wireless encryption, since it’s still considered secure and strong.