Google Cloud Security Threat Horizons Report #13 (H1 2026) Is Out!

This is my completely informal, uncertified, unreviewed and otherwise completely unofficial blog inspired by my reading of our next Cloud Threat Horizons Report, #13 (full version, no info to enter!) that we just released (the official blog for #1 report, my unofficial blogs for #2, #3, #4, #5, #6, #7, #8, #9, #10, #11 and #12).

My favorite quotes from the report follow below:

  • [in Google Cloud] “software exploitation overtook credentials as the primary initial access vector for the first time.” and “Threat actors exploited third-party software-based entry (44.5%) more frequently than weak credentials.” [A.C. — some of you may say this is because AI is making more zero days, but a dozen more mundane answers may be correct instead]
THR H1 2026 image 1
  • “While threat actors continued to use brute-force attacks against weak credentials, the increase in RCE represents a pivot toward more automated exploitation of unpatched application-layer vulnerabilities.” [A.C. — to some extent “creds or vulns” debate is rather pointless as the real answer is “both”, and it varies by environment too, see below]
  • “Threat actors continued to transition from traditional phishing to voice-based social engineering (vishing), and credential harvesting from third-party SaaS tokens to facilitate large-scale, silent data exfiltration.” [A.C. — again, this means “AND” not “OR” because classic phishing still works well in many cases, but yes “credential harvesting from third-party SaaS” has become very fruitful too]
  • [overall] Still “Identity compromise underpinned 83% of compromises. [A.C. — so, yes, “creds” still beat “vulns” on many environments]
THR H1 2026 image 2
  • “High-volume data theft operations — executed through compromised but legitimate access channels — remained the primary goal for threat actors, with our metrics showing they targeted data in 73% of cloud-related incidents.” [A.C. — again, not new, but very useful data confirming the running trend. Beware!]
  • “The window between vulnerability disclosure and mass exploitation collapsed by an order of magnitude, from weeks to days.” [A.C. — again, some of you may see the invisible robot hand of an AI here, but, as usual, the reality is more complicated…]
  • “Trend analysis from 2008–2025 indicates cloud services will soon surpass email as the primary data exfiltration pathway.” [A.C. — $32B reasons to finally get serious about it across all clouds?]
  • 45% of intrusions resulted in data theft without immediate extortion attempts at the time of the engagement, and these were often characterized by prolonged dwell times and stealthy persistence.”
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