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The hidden threat: what are ransomware attacks?

The rise of cyber-seizure: defenses and strategies against malicious encryption

The article discusses ransomware attacks, which encrypt files and demand a ransom. It suggests preventive measures and how to act in case of an attack, advising against paying the ransom.

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Ransomware attacks are among the most pernicious cyber threats in the cybercrime arena. These are malicious software that encrypt victims' files, making them inaccessible, and demand a ransom, generally in cryptocurrency, for their decryption. These attacks can target both individual devices and corporate networks, causing significant damage and economic losses. The versatility of ransomware makes it a constant threat, able to adapt and bypass outdated or ineffective defensive measures.

Ransomware Physiology: How Does It Infect Devices?

Ransomware operates through sophisticated infiltration techniques, such as phishing, software vulnerability exploits, and social engineering. Once inside the system, the ransomware activates, encrypting critical data. The process uses advanced encryption algorithms that make files inaccessible. Cybercriminals also ensure that backup copies are compromised or inaccessible before announcing their presence, thus increasing pressure on victims to meet ransom demands.

Proactive defenses against ransomware

Prevention is essential to defend against ransomware. It is advisable to implement advanced cybersecurity solutions, update systems regularly and apply security patches as they become available. Training users on identifying phishing baits and social engineering techniques is equally critical, as is adopting a regular backup policy, preferably with versioning and physical or logical disconnection of backups to avoid compromise.

React to a ransomware attack

Should a ransomware attack occur, it is imperative to act quickly to limit the damage. Isolating infected devices from the network to prevent the spread of malware and evaluating the status of backups are critical first steps. Collaborating with IT professionals and law enforcement specializing in cybercrime can guide an effective response. While paying the ransom may seem like an immediate solution, it does not guarantee the return of data and often funds further illicit activities of cybercriminals.

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02/08/2024 09:46

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