Ransomware Alert: How to Protect Your Business from Email-Based Attacks

# Ransomware Alert: How to Protect Your Business from Email-Based Attacks

Email remains the primary delivery method for ransomware attacks targeting Australian businesses. From small Perth practices to large enterprises, cybercriminals are using increasingly sophisticated email tactics to encrypt business data and demand payment for its release.

Understanding Email-Based Ransomware

Ransomware delivered via email typically arrives as seemingly legitimate attachments or links. Once activated, it encrypts files across your network, making them inaccessible until a ransom is paid—though payment offers no guarantee of data recovery.

Common Email Ransomware Tactics

• Fake invoices - Appear to be from suppliers or vendors

• Shipping notifications - Claiming package delivery issues

• Tax documents - Especially effective during tax season

• Resume submissions - Targeting HR departments

• Legal notices - Creating urgency to open attachments

• Customer complaints - Exploiting businesses' desire to address issues quickly

Identifying Malicious Emails

Red Flags to Watch For

Professional-looking emails can still be dangerous. Train your team to recognise warning signs:

• Urgent language - "Immediate action required" or "Account suspended"

• Generic greetings - "Dear customer" instead of your actual name

• Suspicious attachments - Unexpected ZIP files, executable files, or macros

• Mismatched sender addresses - Display name doesn't match email address

• Poor grammar - Though some attacks now use perfect English

• Unusual requests - Asking you to enable macros or download software

Safe Email Practices

Implement these practices across your organisation:

• Verify before clicking - Contact senders through a separate communication channel

• Hover over links - Check destination URLs before clicking

• Be cautious with attachments - Especially from unexpected sources

• Report suspicious emails - Forward to your IT team immediately

• Never enable macros - Unless absolutely necessary and verified

Technical Protection Measures

Email Security Solutions

Modern email security goes beyond basic spam filtering:

• Advanced threat protection - Scans attachments in sandboxed environments

• URL filtering - Blocks access to known malicious websites

• Attachment scanning - Deep inspection of file content

• Reputation filtering - Blocks emails from suspicious sources

• User authentication - Verifies sender identity

Network-Level Protection

Layer your defences with network security:

• Firewall configuration - Block unnecessary outbound connections

• DNS filtering - Prevent access to malicious domains

• Network segmentation - Limit ransomware spread

• Regular vulnerability scanning - Identify and patch security gaps

• Endpoint detection - Monitor for suspicious file activity

Employee Training and Awareness

Regular Security Training

Your team is your first line of defence:

• Monthly security briefings - Keep awareness high

• Simulated phishing tests - Practice identifying threats

• Incident reporting procedures - Quick response to suspicious emails

• Password security training - Strong, unique passwords for all accounts

• Social engineering awareness - Understanding manipulation tactics

Creating a Security-Conscious Culture

• Reward reporting - Praise employees who report suspicious emails

• No-blame policies - Focus on learning rather than punishment

• Regular updates - Share information about new threats

• Lead by example - Management must follow security procedures

Backup and Recovery Strategies

Robust Backup Systems

Even with prevention measures, prepare for the worst:

• 3-2-1 backup rule - 3 copies, 2 different media types, 1 offsite

• Regular backup testing - Ensure data can be restored

• Immutable backups - Prevent ransomware from encrypting backups

• Air-gapped storage - Physically disconnected backup systems

• Automated backup schedules - Reduce risk of human error

Recovery Planning

• Incident response procedures - Clear steps for ransomware attacks

• Communication plans - How to notify staff and customers

• Legal considerations - Privacy breach notification requirements

• Business continuity - Maintain operations during recovery

Medical Practice Specific Considerations

Healthcare providers face additional challenges:

• Patient data protection - HIPAA and privacy compliance requirements

• Medical record access - Critical patient information must remain available

• Appointment systems - Practice management software vulnerability

• Medical imaging - Large file sizes attractive to ransomware

Response to Ransomware Attacks

Immediate Actions

If you suspect ransomware:

1. Disconnect infected devices - Prevent further spread

2. Contact IT support - Get professional help immediately

3. Don't pay the ransom - No guarantee of data recovery

4. Report to authorities - Australian Cyber Security Centre (ACSC)

5. Begin recovery procedures - Restore from clean backups

Professional Cybersecurity Support

Protecting your business from ransomware requires expertise in both technology and threat intelligence. SkyComm provides comprehensive email security solutions and ransomware protection for Perth businesses, including medical practices and small enterprises.

Our services include advanced email filtering, employee training programs, backup solutions, and incident response planning. We understand the unique challenges faced by Australian businesses and provide locally-based support when you need it most.

Don't wait until it's too late. Contact SkyComm on 1800 957 977 to assess your current email security and implement protection measures that will keep your business safe from ransomware attacks.