Dear Customer
We are writing to make you aware of a potentially disastrous ransomware/virus attack, which recently affected one of our clients.
Their system was protected by current anti-virus and anti-malware software but this was not able to prevent the infection, which caused the encryption of all files on the server and attached PCs, rendering them inoperable. The server and PCs had to be rebuilt completely from backups. We suspect the infection may have been caused by a member of staff clicking a link in a phishing email.
We strongly urge you to make your staff aware of the danger of opening emails from unknown sources and to make them aware that they should never click a link in a suspicious email. We also urge you to ensure all important files are stored on your server where they will be backed up, otherwise they cannot be recovered after such an attack.
If your network is compromised in this way, the time take to recover and re-establish the network is considerable, and will involve significant downtime, so we urge all customers and their employees to be extra vigilant.
If you have any questions, please do not hesitate to ask us.
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