Understand How to Protect Your Data from Ransomware

Ransomware has become one of the main threats in cybercrime, focusing on disrupting operations and compromising critical information. This type of malware blocks access to systems and demands payment for data recovery, usually in cryptocurrencies.

In recent years, ransomware attacks have become more complex, evolving in technical sophistication. The practice of ransomware as a service (RaaS) has allowed organized groups to operate like professional businesses, increasing pressure on victims.

What is ransomware?

Ransomware is a type of malware that encrypts data, preventing access to affected systems. After infection, the attacker requests payment in exchange for the decryption key. Additionally, it's common for confidential information to be exfiltrated before encryption, increasing extortion.

How to prevent ransomware attacks?

Preventing ransomware infections involves practices similar to those for other malware:

• Only download software from trusted sources;
• Never click on unknown links or open suspicious attachments;
• Do not connect unknown storage devices to the computer.

What to do if you are attacked?

A quick and organized response is crucial in case of an attack. Security personnel should avoid hasty decisions that may worsen the situation.

Isolation of the infection point

The first step is to disconnect affected systems from the network. This includes disabling Wi-Fi connections and removing network cables, preventing the spread of the malware.

Safe shutdown procedure

A hard stop involves the controlled shutdown of critical systems to prevent ransomware from spreading. This procedure should be carried out cautiously to avoid corrupting important data.

Notification to authorities

Notifying the relevant authorities and incident response teams is a vital step. This helps not only in the investigation but also in understanding the necessary legal measures.

Restoration from backups

Trying to restore data from updated backups is one of the best practices. It is essential that backups be kept separate from the main network to ensure their security.

3-2-1 Backup Rule

The 3-2-1 backup rule recommends keeping three copies of the data, stored on two different types of media, one of which should be offline. This approach minimizes the damage caused by ransomware, as the disconnected backups cannot be encrypted.

Security tools and software

Effective security solutions go beyond traditional antivirus software. Tools like EDR (Endpoint Detection and Response) and XDR (Extended Detection and Response) monitor anomalous activities and enable real-time responses.

Practices to avoid in case of an attack

Paying the ransom does not guarantee data recovery and can fuel cybercrime. It is also not advisable to negotiate with attackers without support and to delete evidence.

Preparation and structured information security response are essential to mitigate financial and operational losses. For more information on cybersecurity, follow TecMundo on social media and stay informed about the best practices and trends in the industry.