Introduction
Ransomware is a type of malicious software that encrypts a victim’s files or locks their computer system, making data inaccessible until a ransom is paid to the attacker, usually in cryptocurrency. It is a form of cyber extortion and is part of the broader category of cybercrimes threatening digital security.
How ransomware works
- Delivered through phishing emails, malicious attachments, compromised websites or infected USB drives.
- Once activated, it encrypts critical data and displays a ransom note
- Payments are demanded via anonymous digital channels to evade tracing
Effects on daily life
- Individual impact: Loss of personal photos, documents, and important data; financial loss if ransom is paid; mental stress and fear of identity theft
- Business impact: Disruption of services, loss of customer data, operational downtime, and reputational damage
- Public services: Hospitals, police databases, and government portals can be paralyzed, affecting citizens’ access to essential services
- National security: Can be used in cyber warfare or to sabotage critical infrastructure (power grids, transport systems)Advertisement
Recent trends and examples
- WannaCry attack (2017): impacted over 150 countries, including hospital networks in the UK.
- Indian context: CERT-In (Indian Computer Emergency Response Team) has reported multiple ransomware incidents targeting small businesses, educational institutions, and government systems.
Safeguards/prevention strategies
At Individual LevelAdvertisement
- Avoid clicking suspicious links or downloading unknown attachments
- Keep software and operating systems updated
- Use licensed antivirus and anti-ransomware tools
- Regularly back up important data on offline or cloud storage
At institutional level
- Implement network segmentation and strong cyber hygiene practices
- Conduct employee awareness programmes
- Adopt multi-factor authentication for sensitive systems
At government level
- Strengthen CERT-In and National Critical Information Infrastructure Protection Centre (NCIIPC)
- Enforce Information Technology Act, 2000 provisions for cybercrime
- Collaborate internationally for cybercrime intelligence sharing
Conclusion
Ransomware is not merely a technical issue but a national security and socio-economic challenge. As India moves towards Digital India, strengthening cyber resilience through technology, policy and public awareness becomes essential. A proactive, multi-stakeholder approach can safeguard citizens and institutions from such evolving threats.
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