In a digital era, cyber threats are increasing and getting more sophisticated, especially amid the increased levels of internet use and remote contract work, cloud storage, and high dependence on digital devices.

Some of the most common cyber threats include:

Malware

Malware is malicious software that involves breaches through a network via a vulnerable loophole. It usually happens when a user follows an insecure link that installs malware in the system. Once in the system, malware can do lots of damage including blocking access to a vital component of the network, lagging the system thus creating vulnerabilities in it, getting information from the system, disrupting the normal functioning of the system, or rendering the system inoperable.

Phishing

This is sending deceitful information to a user that may seem to be from a well-known source mainly via email, but in actuality, the aim of such a message is to access important data or log-in information illegally.

Man-in-the-middle attack

This attack happens when an attacker inserts himself into a two-way transaction to filter or steal data without the user’s consent.

MIM attacks occur mostly through insecure public internet connections, where a system gives the attacker a back door to install software that can process a user’s data.

Denial-of-service attack

A denial of service attack overloads systems, servers, or a network with too much data traffic to exhaust manageable server requests. Thus, the system lags and is unable to make any legitimate requests

SQL injection

A Structured Query Language injection takes place when an attacker intentionally allows malicious code into a server. This attack allows the server to run programs not intended by the manager.

Zero-day exploit

A zero-day exploit kicks in when a network weakness is detected, but a correction has not been implemented yet. An attacker targets this time when a system is most vulnerable to spring an attack.

With the increasing cyber threats, it is crucial, especially in organizations, to train employees on cyberattack prevention. It is also important to check links before clicking them or before opening email attachments. Considering that most cyberattacks occur through fraudulent emails, it is vital to check email addresses. Whether big or small, it is also important for any organization to keep its systems updated because updated software and systems have efficient patches for any previous loopholes.In the event of data loss due to a cyber-attack, it is very important that a user has their data backed up, so they can retrieve important information lost during a cyber-attack. Having control over who can access a network or a system is very significant, too. Installing an effective firewall can be very helpful with so many sophisticated data breaches taking place every day. An effective network security system is imperative.

The post What Are the Most Common Cyber Threats and What to Do About Them? appeared first on Network Security Group - Protect your personal data.

Here, there are some common types of ransomware.

Crypto malware 

This is the most common type of ransomware where the malware encrypts your data and the attacker asks for a ransom payment to decrypt the data

Lockers

This malware mostly targets android devices by completely locking the users out of their device, so they can’t access any data on the device.

Scareware

This shows up as real ransomware but is actually fake. It appears as a pop-up message or might lock your computer and leave a ransom note. However, when payment is made, a user might realize that data was never encrypted at all

Doxware or Leakware

This works as a crypto-malware, only with this type hackers not only encrypt your data but also threaten to leak or publish it unless the ransom is paid

Ransomware as a service(RaaS)

This malware is hosted anonymously by a hacker who handles the distribution of the malware, collects the ransom payments, and takes a cut from the ransom paid.

Device-based ransomware

Some ransomware is designed to target specific operating systems. Macs have had ransomware developed just for macOS. Mobile devices have also been targets in ransomware attacks.

The most common way ransomware gets into your system is through phishing, such as emails. Emails appear to look as they are from a legitimate source, say your bank or work or a friend, but they have a link or an attachment that hides the malicious software. Once you click on the link or download the attachment, the malware takes over your system.

Some hackers can also use social engineering attacks to get you into giving them remote access to your system. There is encryption ransomware that is more aggressive and does not need to trick you to infect your system.

Whether to pay the ransom or not is entirely your decision. Most cybersecurity experts advise not to pay, as you will encourage the hacker to continue using the ransomware. In some situations, the data can be more valuable.

The best way to protect against ransomware is to recognize phishing. Beware of email attachments and suspicious links, and confirm the email address they are sent from. You can also use anti-virus software to scan your system for any malware regularly. Use whitelisting software that filters only authorized software from being installed on your computer.

It is also imperative to keep your software and systems up to date because updates will patch the bugs and vulnerabilities that a ransomware hacker might exploit. Do not give remote access to anyone unless you know who they are and why they need access.

Back up your data. Back-ups will not protect you from a hacker, but they will give you an upper hand in negotiating and, thus, minimizing the damage or loss.

The post Ransomware: How Does It Work and How to Remove It? appeared first on Network Security Group - Protect your personal data.