I don't know if you have ever heard or read somewhere this word "ramsonware" but for sure you have heard of computer viruses, and in this case those of the "data stealing" type. In essence, for some years now it is fashionable to circulate viruses that once activated encrypt all the data present in your PC and if they are present also those contained in all the network devices that share storage space. Thanks to the powerful real-time backup services available on Synology servers you can get a copy of your data in multiple chronological versions in a completely automatic and transparent way. This means that if I'm working on writing my book or my thesis and save the daily changes on the same file, I can view an old relase at any time based on the number of chronological versions that I have chosen to store in the multi-version BackUp service. If today a virus attacks me that encrypts my work for a year, I can recover yesterday's version that is healthy and resume my work from the previous day instead of starting it all over again, all thanks to one of the many security services available from the latest generation of Synology servers.