The Short Version
IBM's own 2022 press release explicitly states the global average cost of a data breach reached $4.35 million, directly confirming the claim. Multiple independent secondary sources corroborate this figure. The number derives from IBM/Ponemon's annual study sample rather than a census of every breach worldwide, but the claim's use of "estimated" accurately reflects this methodology. This is the standard, widely accepted figure for 2022 global average breach costs across the cybersecurity industry.