A scammer gained access to my Cosmostation wallet seed phrase after I visited untrustworthy websites that infected my computer. At least that is what I believe.
Or you input your seed phrase on such website? Unless you downloaded and run that file on your computer, i don't think it's some kind of malware, but yeah better to take it as such and reformat your computer will be the best solution for that.
About the recovery service online, 90% of them are scam, unless they posted on this forum, build up their reputation by experience, and people recommends them, which that mentioned service doesn't have so i will avoid them doing any business.