About Simcash at simcash.io
Simcash.io claims people can make profits with their unused SMS, but it doesn't tell you exactly how the process works. All it does is tell you to signup and make money, which can be sent to you in Bitcoins, US dollars or Euros. But, if they use the SMS maliciously or fraudulently, the owners of the SIMs used will be fully responsible, because owners naively gave consent to an untrustworthy app they downloaded from an unnkown source.
Remember, your cellphone is used by your banks, service providers and other institutions to verify who you are. So, giving an untrustworthy app access to your phone can put at risk. A malicious app can steal your personal information and account credentials by monitoring your text messages, contacts, other apps and send the information to cybercriminals, where they can use use the stolen information fraudulently.