Spamming activity happens when user's email password is stolen and being used by hackers/spammers to send out unsolicited bulk emails.
Spammers may send out the mails either from our mail server, or from their own server to random email recipients.
Commonly, email password can be stolen easily by hackers due to:
1. Use of poor password, such as password123, abcdef, 123456, and more
2. Email users fall into scam email and give away their password through phishing links/sites
3. Users clicked on virus-infected email or attachment
4. Users computer is infected by virus/malware
5. Use of pirated software that is planted with hidden malware
6. Use the same email password with other users
It is important to take the following precaution actions to ensure user's email password remains intact.
1. Use a strong password that contains alphanumeric characters and symbols
2. Do not give away password through phishing links
3. Perform scheduled full scan on the computer to ensure that it is free from virus/malware
4. Download and install software from trusted source only
5. Avoid installing pirated software on computer
6. Assign individual password for each email user
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