I was browsing through a site that post results of tests conducted on the algorithm of ciphers.
The site is http://defectoscopy.com/results.html
It shows XTEA-128 as "Most probably secure, but with an unreasonably large margin" in it's analysis.
How secure is XTEA and is it recommended to use XTEA as an option in encryption softwares that requires good amount of security (e.g. password manager programs) ?