We have an announcement to make regarding certain services and technologies, like "Cloud Gaming" platforms and various cloud / cloud VM and hypervisor based services and software.
Unfortunately, the majority of such services can no longer be used with MTA starting today. After observing a growing trend of abuse, such as server ban evading (serials related) we have enabled the same type of security, known as MTA serial verification - which usually applies to the most common consumer VM software - to all VM types and cloud services that we know of.
This means that the procedure from https://updatesa.multitheftauto.com/sa/trouble/?tr=serial-validation must be followed on all relevant services, not just the aforementioned.
Because most cloud & VM hosting services won't provide users access to the host machine (that hosts the VM), we expect that most "cloud gaming" users will no longer be able to play MTA using said service. Not that MTA is an attractive game to play in cloud gaming though, we advise you to use MTA like a normal user (on your own PC) and understand that we care about servers being able to reliably ban players. Cloud gaming, for instance.. would constantly offer you a new so-called environment, allowing infinite serial swaps, making you hard to ban.
It's possible for some people still being able to use relevant services, as these measures will only apply to newly generated MTA serials (not retroactively). This is intended.
This topic is also relevant to the "There was a problem validating your serial" error and "Banned by MTA" with reason PROHIBITED VM TYPE / SECURITY VIOLATION