Automated Indicator Sharing (AIS) is a service the Cybersecurity and Infrastructure Security Agency (CISA) provides to enable real-time exchange of machine-readable cyber threat indicators and defensive measures between public and private-sector organizations. AIS helps to protect the participants of the service and ultimately reduce the prevalence of cyberattacks. The AIS community includes private sector entities; federal agencies; state, local, tribal, and territorial (SLTT) governments; information sharing and analysis centers (ISACs) and information sharing and analysis organizations (ISAOs); and foreign government partners and companies. AIS, offered at no cost to participants, is part of CISA’s mission to collaborate with public and private sector partners to identify and help mitigate cyber threats through information sharing. The AIS ecosystem empowers participants to share cyber threat indicators and defensive measures such as information about attempted adversary compromises as they are being observed. These real-time insights help protect other participants of the AIS community and ultimately limit the adversary’s use of an attack method. As more information is shared, more organizations become informed and better equipped to prevent further damage from vicious cyber-attacks.
AIS enables the real-time exchange of machine-readable cyber threat indicators through a server/client architecture for communications.
CISA highly encourages AIS participants to share cyber threat indicators (CTIs) and defensive measures (DMs) via the bidirectional AIS TAXII connection.
CISA has taken careful measures to ensure that participants' privacy and protections are implemented and respected.
Share AIS cyber threat indicators and defensive measures through a participating ISAC or ISAO or via an AIS-integrated commercial product or service.
DHS-approved PKI CA providers that currently offer a medium assurance Federal Bridge Certificate Authority supported PKI certificate.
CISA is the designated hub for the sharing of cyber threat indicators and defensive measures between the federal government and private sector pursuant to the Cybersecurity Information Sharing Act of 2015 (CISA 2015). This law grants liability protection, privacy protections, and other protections to organizations that share cyber threat indicators and defensive measures through AIS in accordance with the Act’s requirements.
As mandated by CISA 2015, DHS certified the operation of AIS in March 2016 and released a series of guidance, in conjunction with the Department of Justice, to help private and public sector entities share cyber threat indicators with the Federal Government.