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Cyber extortionists are tricking victims into opening malicious malware attachments in spam emails that appear to contain invoices, job offers, security warnings and other legitimate files.
Do Not open an email attachment unless you are 100% sure that it is okay. Ring or contact the sender first or ask a computer expert.
Also, a message that I am always putting out to people who own a computer ...... "Update and Backup". As well as having regularly updated Anti-Malware/Anti-Virus software it is very important to allow updates for your operating system (Windows and Mac's). I can fix most computer issues but not the Ransomware infection which locks up all your personal files with a password. This means that you will have lost all access to your documents, pictures, and personal files, unless you pay a ransom for the password (I do not recommend paying), call an expert.
Stay safe online.
Do regular backups of all your important personal data folders and files. Also try to keep your backups offline because the ransomware virus can also lockup your backup file or networks.
Sydney Morning Herald articles: