Internet security

[2] The Internet is an inherently insecure channel for information exchange, with high risk of intrusion or fraud, such as phishing,[3] online viruses, trojans, ransomware and worms.

For example, deepfakes use AI to produce audio and video that seems real but are actually fake, which increases the danger of fraud and false information.

Furthermore, traditional risks can be automated and strengthened by AI-driven attacks, making them harder to identify and neutralize.

[5] According to business participants in an international security survey, 25% of respondents experienced a DoS attack in 2007 and another 16.8% in 2010.

[7][8] Insurance group RSA claimed that phishing accounted for worldwide losses of $10.8 billion in 2016.

[citation needed] Applications used to access Internet resources may contain security vulnerabilities such as memory safety bugs or flawed authentication checks.

Some online sites offer customers the ability to use a six-digit code which randomly changes every 30–60 seconds on a physical security token.

[16] Using a network connection, the mail client sends the sender's identity, the recipient list and the message content to the server.

For example, the organizations could establish a virtual private network (VPN) to encrypt communications between their mail servers.

A firewall is a security device — computer hardware or software — that filters traffic and blocks outsiders.

Its main job is to filter traffic from a remote IP host, so a router is needed to connect the internal network to the Internet.

In a stateful firewall the circuit-level gateway is a proxy server that operates at the network level of an Open Systems Interconnect (OSI) model and statically defines what traffic will be allowed.

[22] Security suites were first offered for sale in 2003 (McAfee) and contain firewalls, anti-virus, anti-spyware and other components.

[23] They also offer theft protection, portable storage device safety check, private Internet browsing, cloud anti-spam, a file shredder or make security-related decisions (answering popup windows) and several were free of charge.

[25] At the National Association of Mutual Savings Banks (NAMSB) conference in January 1976, Atalla Corporation (founded by Mohamed Atalla) and Bunker Ramo Corporation (founded by George Bunker and Simon Ramo) introduced the earliest products designed for dealing with online security.

Designed to process bank transactions online, the Identikey system was extended to shared-facility operations.

It was compatible with various switching networks, and was capable of resetting itself electronically to any one of 64,000 irreversible nonlinear algorithms as directed by card data information.