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Deep Content Inspection
Deep content inspection (DCI) is a form of network filtering that examines an entire file or MIME object as it passes an inspection point, searching for viruses, spam, data loss, key words or other content level criteria. Deep Content Inspection is considered the evolution of deep packet inspection with the ability to look at what the actual content contains instead of focusing on individual or multiple packets. Deep content inspection allows services to keep track of content across multiple packets so that the signatures they may be searching for can cross packet boundaries and yet they will still be found. An exhaustive form of network traffic inspection in which Internet traffic is examined across all the seven OSI ISO layers, and most importantly, the application layer. Background Traditional inspection technologies are unable to keep up with the recent outbreaks of widespread attacks. Unlike inspection methods such as deep packet inspection (DPI), where only the data part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIME
A mime artist, or simply mime (from Greek language, Greek , , "imitator, actor"), is a person who uses ''mime'' (also called ''pantomime'' outside of Britain), the acting out of a story through body motions without the use of speech, as a theatrical medium or as a performance art. In earlier times, in English, such a performer would typically be referred to as a mummer. Miming is distinguished from silent comedy, in which the artist is a character in a film or skit without sound. Jacques Copeau, strongly influenced by Commedia dell'arte and Japanese Noh theatre, used masks in the training of his actors. His pupil Étienne Decroux was highly influenced by this, started exploring and developing the possibilities of mime, and developed corporeal mime into a highly sculptural form, taking it outside the realms of naturalism. Jacques Lecoq contributed significantly to the development of mime and physical theatre with his training methods. As a result of this, the practice of mime h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clearswift
Clearswift is an information security company based in the UK. It offers cyber-security services to protect business's data from internal and external threats. The company is owned by Eden Prairie, Minnesota-based HelpSystems. History Clearswift was founded as NET-TEL in 1982. One of the co-founders, John Horton, had previously worked at GEC and Acorn Computers. In 1988, NET-TEL launched ''Route400'', the world's first mail client for MS-DOS (using the X.400 protocol). It was later ported to other platforms. In 1998, NET-TEL switched its main business to content filtering, as the popularity of the Microsoft Exchange Client took away the mail client market. In 2001, NET-TEL was rebranded as Clearswift, after a round of venture capital fundraising. In 2002, Clearswift acquired Content Technologies from Baltimore Technologies, along with the MIMEsweeper brand. Clearswift extended the MIMEsweeper line to include web and instant messaging filtering. These were marketed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero-day Attack
A zero-day (also known as a 0-day) is a vulnerability or security hole in a computer system unknown to its developers or anyone capable of mitigating it. Until the vulnerability is remedied, threat actors can exploit it in a zero-day exploit, or zero-day attack. The term "zero-day" originally referred to the number of days since a new piece of software was released to the public, so "zero-day software" was obtained by hacking into a developer's computer before release. Eventually the term was applied to the vulnerabilities that allowed this hacking, and to the number of days that the vendor has had to fix them. Vendors who discover the vulnerability may create patches or advise workarounds to mitigate it – though users need to deploy that mitigation to eliminate the vulnerability in their systems. Zero-day attacks are severe threats. Definition Despite developers' goal of delivering a product that works entirely as intended, virtually all software and hardware contain bugs. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Loss Prevention Software
Data loss prevention (DLP) software detects potential data breaches/data exfiltration transmissions and prevents them by monitoring, detecting and blocking sensitive data while ''in use'' (endpoint actions), ''in motion'' ( network traffic), and ''at rest'' (data storage). The terms " data loss" and " data leak" are related and are often used interchangeably.Asaf Shabtai, Yuval Elovici, Lior Rokach,A Survey of Data Leakage Detection and Prevention Solutions Springer-Verlag New York Incorporated, 2012 Data loss incidents turn into data leak incidents in cases where media containing sensitive information are lost and subsequently acquired by an unauthorized party. However, a data leak is possible without losing the data on the originating side. Other terms associated with data leakage prevention are information leak detection and prevention (ILDP), information leak prevention (ILP), content monitoring and filtering (CMF), information protection and control (IPC) and extrusion preve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Loss
Data loss is an error condition in information systems in which information is destroyed by failures (like failed spindle motors or head crashes on hard drives) or neglect (like mishandling, careless handling or storage under unsuitable conditions) in storage, transmission, or processing. Information systems implement backup and disaster recovery equipment and processes to prevent data loss or restore lost data. Data loss can also occur if the physical medium containing the data is lost or stolen. Data loss is distinguished from data unavailability, which may arise from a network outage. Although the two have substantially similar consequences for users, data unavailability is temporary, while data loss may be permanent. Data loss is also distinct from data breach, an incident where data falls into the wrong hands, although the term data loss has been used in those incidents. Types *''Procedural'' * ''Intentional action'' ** Intentional deletion of a file or program * ''Unin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-spam Techniques
Various anti-spam techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) as opposed to not rejecting all spam email ( false negatives) – and the associated costs in time, effort, and cost of wrongfully obstructing good mail. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials. End-user techniques There are a number of techniques that individuals can use to restrict the availability of their email addresses, with the goal of reducing their chance of receiving spam. Discretion Sharing an email address only among a limited group of correspondents is one way to limit the chance that the address will be "harve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malware
Malware (a portmanteau of ''malicious software'')Tahir, R. (2018)A study on malware and malware detection techniques . ''International Journal of Education and Management Engineering'', ''8''(2), 20. is any software intentionally designed to cause disruption to a computer, server (computing), server, Client (computing), client, or computer network, leak private information, gain unauthorized access to information or systems, deprive access to information, or which unknowingly interferes with the user's computer security and privacy. Researchers tend to classify malware into one or more sub-types (i.e. computer viruses, Computer worm, worms, Trojan horse (computing), Trojan horses, logic bombs, ransomware, spyware, adware, rogue software, Wiper (malware), wipers and keyloggers). Malware poses serious problems to individuals and businesses on the Internet. According to NortonLifeLock, Symantec's 2018 Internet Security Threat Report (ISTR), malware variants number has increased to 66 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firewall (computing)
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on configurable security rules. A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet or between several VLANs. Firewalls can be categorized as network-based or host-based. History The term '' firewall'' originally referred to a wall to confine a fire within a line of adjacent buildings. Later uses refer to similar structures, such as the metal sheet separating the engine compartment of a vehicle or aircraft from the passenger compartment. The term was applied in the 1980s to network technology that emerged when the Internet was fairly new in terms of its global use and connectivity. The predecessors to firewalls for network security were routers used in the 1980s. Because they already segregated networks, routers could filter packets crossing them. Before it was used in real-life comput ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guard (information Security)
In information security, a guard is a device or system for allowing computers on otherwise separate networks to communicate, subject to configured constraints. In many respects a guard is like a firewall and guards may have similar functionality to a gateway. Whereas a firewall is designed to limit traffic to certain services, a guard aims to control the information exchange that the network communication is supporting at the business level. Further, unlike a firewall a guard provides assurance that it is effective in providing this control even under attack and failure conditions. A guard will typically sit between a protected network and an external network, and ensure the protected network is safe from threats posed by the external network and from leaks of sensitive information to the external network. A guard is usually dual-homed, though guards can connect more than two networks, and acts as a full application layer proxy, engaging in separate communications on each inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bring Your Own Device
Bring your own device (BYOD ) (also called bring your own technology (BYOT), bring your own phone (BYOP), and bring your own personal computer (BYOPC)) refers to being allowed to use one's personally owned device, rather than being required to use an officially provided device. There are two major contexts in which this term is used. One is in the mobile phone industry, where it refers to carriers allowing customers to activate their existing phone (or other cellular device) on the network, rather than being forced to buy a new device from the carrier. The other, and the main focus of this article, is in the workplace, where it refers to a policy of permitting employees to bring personally owned devices (laptops, tablets, smartphones, etc.) to work, and to use those devices to access privileged company information and applications. This phenomenon is commonly referred to as IT consumerization. BYOD is making significant inroads in the business world, with about 80% of employees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NetScreen Technologies
NetScreen Technologies was an American technology company that was acquired by Juniper Networks for US$4 billion stock for stock in 2004. NetScreen Technologies developed ASIC-based Internet security systems and appliances that delivered high performance firewall, VPN and traffic shaping functionality to Internet data centers, e-business sites, broadband service providers and application service providers. NetScreen was the first firewall manufacturer to develop a gigabit-speed firewall, the NetScreen-1000. History NetScreen Technologies was founded by Yan Ke, Ken Xie, and Feng Deng. Ken Xie, Chief Technology Officer and co-founder was also the CEO until Robert Thomas joined in 1998. Robert Thomas, NetScreen's president and chief executive officer, came to NetScreen in 1998 from Sun Microsystems, where he was General Manager of Intercontinental Operations for Sun's software business, which includes security, networking, and Internet tools. Ken Xie left NetScreen in 2000 to fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Content Adaptation Protocol
The Internet Content Adaptation Protocol (ICAP) is a lightweight Hypertext Transfer Protocol, HTTP-like protocol specified in , which is used to extend transparent proxy servers, thereby freeing up resources and standardizing the way in which new features are implemented. ICAP is generally used to implement antivirus software, virus scanning and content filtering, content filters in transparent HTTP proxy caches. Content adaptation refers to performing the particular value added service (content manipulation) for the associated client request/response. ICAP concentrates on leveraging edge-based devices (Proxy server#Caching, caching proxies) to help deliver value-added services. At the core of this process is a cache that will proxy all Client (computing), client transactions and will Process (computing), process them through web servers. These ICAP servers are focused on a specific function, for example, ad insertion, Computer virus, virus scanning, multi-AV scanning, content ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
