You should install a personal ______, a program that protects your computer
Stealth viruses: These types of viruses use different kind of techniques to avoid detection. They either redirect the disk head to read another sector instead of the one in which they reside or they may alter the reading of the infected file’s size shown in the directory listing. For example, the Whale virus adds 9216 bytes to an infected file; then the virus subtracts the same number of bytes (9216) from the size given in the directory.
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Antivirus software is a class of program designed to prevent, detect and remove malware infections on individual computing devices, networks and IT systems. Antivirus software, originally designed to detect and remove viruses from computers, can also protect against a wide variety of threats, including other types of malicious software, such as keyloggers, browser hijackers, Trojan horses, worms, rootkits, spyware, adware, botnets and ransomware. How antivirus software worksAntivirus software typically runs as a background process, scanning computers, servers or mobile devices to detect and restrict the spread of malware. Many antivirus software programs include real-time threat detection and protection to guard against potential vulnerabilities as they happen, as well as system scans that monitor device and system files looking for possible risks. Antivirus software usually performs these basic functions:
In order to scan systems comprehensively, antivirus software must generally be given privileged access to the entire system. This makes antivirus software itself a common target for attackers, and researchers have discovered remote code execution and other serious vulnerabilities in antivirus software products in recent years. Types of antivirus programsAntivirus software is distributed in a number of forms, including stand-alone antivirus scanners and internet security suites that offer antivirus protection, along with firewalls, privacy controls and other security protections. Some antivirus software vendors offer basic versions of their products at no charge. These free versions generally offer basic antivirus and spyware protection, but more advanced features and protections are usually available only to paying customers. While some operating systems are targeted more frequently by virus developers, antivirus software is available for most OSes:
Virus detection techniquesAntivirus software uses a variety of virus detection techniques. Originally, antivirus software depended on signature-based detection to flag malicious software. Antivirus programs depend on stored virus signatures -- unique strings of data that are characteristic of known malware. The antivirus software uses these signatures to identify when it encounters viruses that have already been identified and analyzed by security experts. Signature-based malware cannot detect new malware, including variants of existing malware. Signature-based detection can only detect new viruses when the definition file is updated with information about the new virus. With the number of new malware signatures increasing at around 10 million per year as long ago as 2011, modern signature databases may contain hundreds of millions, or even billions, of entries, making antivirus software based solely on signatures impractical. However, signature-based detection does not usually produce false positive matches. Heuristic-based detection uses an algorithm to compare the signatures of known viruses against potential threats. With heuristic-based detection, antivirus software can detect viruses that haven't been discovered yet, as well as already existing viruses that have been disguised or modified and released as new viruses. However, this method can also generate false-positive matches when antivirus software detects a program behaving similarly to a malicious program and incorrectly identifies it as a virus. Antivirus software may also use behavior-based detection to analyze an object's behavior or potential behavior for suspicious activities and infers malicious intent based on those observations. For example, code that attempts to perform unauthorized or abnormal actions would indicate the object is malicious, or at least suspicious. Some examples of behaviors that potentially signal danger include modifying or deleting large numbers of files, monitoring keystrokes, changing settings of other programs and remotely connecting to computers. What is a program that protects your computer from unauthorized access by blocking certain types of communications?Firewall defined
A firewall is a security device — computer hardware or software — that can help protect your network by filtering traffic and blocking outsiders from gaining unauthorized access to the private data on your computer.
Which of the following are good ways to protect your computer?Tips to protect your computer. Use a firewall. ... . Keep all software up to date. ... . Use antivirus software and keep it current. ... . Make sure your passwords are well-chosen and protected. ... . Don't open suspicious attachments or click unusual links in messages. ... . Browse the web safely. ... . Stay away from pirated material.. What protects your device against unauthorized access?Software firewall - A software firewall is a software program you install on your computer to helps protect it from unauthorized incoming and outgoing data. A software firewall will protect only the computer on which it has been installed. Additionally, many antivirus scanners include a software firewall.
What purpose was the BSA formed?The BSA's stated purpose at its incorporation in 1910 was, to teach [boys] patriotism, courage, self-reliance, and kindred values. Later, in 1937, Deputy Chief Scout Executive George J.
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