Episode 5
File Sharing
In this episode we uncover another security enemy”: File Sharing. When you exchange documents between two or more computers not connected through the same network environment, you are doing File Sharing. In case you work on the same network, for example your Lan network, you are able to modify concurrently a file with other users. Otherwise you have to find another way to exchange files, for instance emails although have limits to send large files.
The characters of the story
The story
Glossary
Cloud
What is the cloud? Someone would say : "Someone else's computer!". In reality we have to imagine the cloud as a set of many computers that are connected together so tightly, to appear a single large processing center, of which each user uses only a small part. It has different variations, private, hybrid and public, but its nature does not change : shared resources logically divided between different users.
Online document sharing
The systems of "Online Document Sharing" or better of "Document Management", are systems that allow multiple users to access the same data through the cloud. Often they also allow you to work directly online, but generally they are used for the exchange of large documents, when you want to give access to multiple or very large documents.
End-to-end encryption
It's an ecnryption system that allows you to encrypt/decrypt data or messages only from authorized sender or receiver. It's extremely important if you want your data to remain secure and out of sight.
MFA Multifactor authentication
this system allows a user to get on in a system after doing several checks (two or more). For example in addition to username and password, we will be asked for another identity information. This may be a PIN number sent on your smartphone or randomly generated like a soft-token (for instance the system that you use to enter in your online bank account), or a smartcard. Furthermore, this requested information can be a physical characteristic of a user like fingerprint, hand scan, iris scan, etc...
Today's lesson
Free stuff is awesome, you can save a lot of money and time. But not always they are secure. The risk of spreading sensitive data to unauthorized users is around the corner. Before using a File Sharing service found surfing on the Internet, ask your organization if it has already tested and accepted and certified. Otherwise, verify with you IT supervisor if your file sharing is applicable and remember, encrypt data before sending them!
What should I do?
Link di approfondimento
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Caso 1Il Comune di Martis avvisa di fare attenzione ad una mail di phishing contenente un ransomware.
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Caso 2Una pagina di avviso del Comune di Bracciano - Allarmi Virus che mette in guardia gli utenti da infezioni (tra cui WannaCry) tramite email.
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NewsNotizia del Messaggero sui ransomware. fa riferimento anche all'infezione che ha contratto il comune di Alessandria.