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[FedCM] Implement intrusion mitigation via cooldown finch experiment 1/2

To mitigate the intrusion issue, this patch increases the current
cooldown period via a Finch experiment to make sure the changes do not
negatively impact other successful metrics.

A follow up patch will add another experiment to improve the cooldown
logic.

Bug: 398888508
Change-Id: Ia59e20f6699773d0a2b11fe58bb4e8319a7f0b62
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6297528
Reviewed-by: Thomas Nguyen <tungnh@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1426251}
This commit is contained in:
Yi Gu
2025-02-28 05:45:03 -08:00
committed by Chromium LUCI CQ
parent 62342e4955
commit 46be80123c
5 changed files with 72 additions and 16 deletions

@@ -9724,6 +9724,32 @@
]
}
],
"FedCmIntrusionMitigation": [
{
"platforms": [
"android",
"android_weblayer",
"chromeos",
"linux",
"mac",
"windows"
],
"experiments": [
{
"name": "UpdatedCooldownPeriod",
"params": {
"FirstDismissal": "24",
"FourthDismissal": "28",
"SecondDismissal": "5",
"ThirdDismissal": "14"
},
"enable_features": [
"FedCmUpdatedCooldownPeriod"
]
}
]
}
],
"FeedLoadingPlaceholder": [
{
"platforms": [