With the help of permissions of an operating system, users can access the various resources of a computer. These resources are, for example, files, applications, peripherals, interfaces or computing power, and other objects. What are authorizations? In modern multi-user operating systems, rights management for the various users is integrated, which can be used to grant …
Process Explorer from Microsoft Sysinternals can also be used to scan Windows servers and workstations for viruses. In addition to system utilization, attackers can also be detected and combated. Virus scan with Microsoft Process Explorer The free Sysinternals Process Explorer can display the running processes on Windows computers and helps with analysis. This also makes …
Ransomware is malware that blocks the use of computers or data and demands a ransom for release. Methods such as file encryption are used. Well-known examples of this type of malware are CryptoLocker, WannaCry, or Locky. The term ransomware is derived from the English word “ransom”. It means ransomware. Ransomware is extortionate malware that tries …
The smartphone has become the constant companion of our modern society. That’s why it’s important not only to beware of fraud and hacking on the computer but also to include mobile devices such as cell phones. Unfortunately, smishing – phishing via SMS – is a growing trend. New trend: phishing via SMS Patrycja Tulinska, Managing …
The increasing number of services on the Internet also means an increasing number of login data. If you want to use a different password for each login, password managers like the free open source tool KeePass can help you keep track of everything. KeePass is available for Windows, macOS, and Linux, and mobile use under …
No user can remember complex passwords, but password management systems can easily accommodate many combinations of any letters, numbers, and special characters. Password managers for managing access data and passwords are therefore an important security measure in the online world. What is a password manager? No one should have to remember complex passwords anymore. Password …
WireGuard is a still very young technology to realize secure and powerful virtual private networks (VPNs) with little effort. It is an open-source protocol and software that is intended to provide an alternative to established VPN solutions such as OpenVPN or IPsec. WireGuard was developed with the goal of making VPNs easier and providing an …
The myth that there are no viruses for Apple computers still persists, even though it is false. There are several ways to protect your Mac from viruses. Many manufacturers of antivirus software today also offer a version for macOS. But there are also free apps that provide security on Macs and are a good start. …
Mimikatz is a tool that can be used to display cached credentials of a computer running the Microsoft Windows operating system by exploiting vulnerabilities. The software is freely available and can be downloaded from GitHub in a 32-bit or 64-bit version. What is Mimikatz? Mimikatz is a tool that developer Benjamin Delpy originally intended to …
A keylogger is a software or hardware that is capable of logging a user’s keystrokes on a computer. With such a logger, it is possible to obtain confidential data or spy out passwords. What is a keylogger? Keylogger is sometimes also called as a keystroke logger. Such a logger can be implemented either in the …
With Windows Server 2022, Microsoft is bringing new security features to its server operating system. In addition to Secured Core, DNS-over-HTTP, and TLS 1.3, there are other innovations that admins should know and understand. Windows Server 2022 brings with it some innovations in the area of security. In this article, we present some options and …
Computer fraud is a criminal offense under cybercriminal law. Computer fraud occurs, for example, when a perpetrator interferes with the function of computer programs without permission, modifies them, or operates them with false deeds, and a financial loss is incurred by a third party. Attempts are also punishable. The penalties range from fines to imprisonment …
An account is a user account for accessing and using an IT service or an IT system. The account stores information about the user and assigns certain rights or roles. User accounts are used for applications, Internet services, and operating systems. What is an account? An account allows access to and use of an access-restricted …
Windows Defender Credential Guard helps secure credentials on networks. Hypervisor-Protected Code Integrity (HVCI), in turn, uses virtualization technologies to protect computer memory. Using Windows Defender Credential Guard and HVCI correctly Windows Defender Credential Guard is an internal network protection system usable on Windows 10 and Windows Server 2016/2019. If attackers have infiltrated the network, there …
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WebAuthn enables the authentication of users without a password. It is a W3C standard based on public-key methods and the use of factors such as biometric features, hardware tokens, or smartphones. Numerous browsers, operating systems, and Internet applications already support the method. What is WebAuthn? The term WebAuthn stands for a standard published by the …
You can’t do without passwords! A login screen on the PC, the account for online banking, the web order page, the login for the social media network, everywhere you are asked for a password. This password should be as complicated as possible, contain special characters, and not already be used elsewhere. A requirement that is …
If the operating system of a computer does not start anymore, one usually reaches for the rescue CD. But if the PC has no optical drive, you can use a bootable USB stick to rescue the data or the complete system. There are many ways to copy rescue CDs or entire live operating systems to …
The open-source solution VeraCrypt can encrypt complete hard disks, but also use individual areas on hard disks to create an encrypted container. Here, users can encrypt data quickly and easily.VeraCrypt offers users high data security for Windows, macOS, and Linux at zero cost. Encrypt hard drives with VeraCrypt VeraCrypt is available as a free open-source …
A PUP is a potentially unwanted program on the computer, which often gets onto the computer as part of the installation of another software. The PUP usually serves as a marketing tool and, for example, displays unsolicited advertisements or changes browser settings. The most common form of PUP is advertising software, so-called adware. What is …
Pass-the-Hash is an attack method that uses the hash value of a password to authenticate against a system. Through vulnerabilities in the system or in the authentication protocols, the hash value can be read out with tools and used for authentication. The attack method can be used in various operating system environments such as Windows …
