ATO most commonly refers to Authority To Operate. It is a formal declaration by a designated approving official (DAO) that authorizes an organization to operate an information system (IS) or application at an acceptable level of risk. It's a critical step in cybersecurity compliance, indicating that a system has been assessed, security controls are in place, and residual risks are deemed acceptable by the responsible authority.
Whether you're looking to get your foot in the door, find the right person to talk to, or close the deal — accurate, detailed, trustworthy, and timely information about the organization you're selling to is invaluable.
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