Protonmail is cop friendly. Any reasonable privacy aware email provider would hash the secondary email, not store it as cleartext. I implemented secondary email hashing for Riseup to prevent exactly this thing, over a decade ago.
https://restoreprivacy.com/protonmail-discloses-user-data-leading-to-arrest-in-spain/
Elijah Waxwing /
npub1u4…jmsqk
2024-05-07 02:37:58
Author Public Key
npub1u4kwssmwmmlqgqzvyvrtlgfu0xcmlyeqc9yhmsju8rpj8xx8afysrjmsqkPublished at
2024-05-07 02:37:58Event JSON
{
"id": "eb98f82633a3e6cc641b83f69f3e4e4b3bc928ce8a46cce9ec4b95428fbaf2b1",
"pubkey": "e56ce8436edefe04004c2306bfa13c79b1bf9320c1497dc25c38c32398c7ea49",
"created_at": 1715049478,
"kind": 1,
"tags": [
[
"proxy",
"https://kolektiva.social/@elijah/112397482609748338",
"web"
],
[
"proxy",
"https://kolektiva.social/users/elijah/statuses/112397482609748338",
"activitypub"
],
[
"L",
"pink.momostr"
],
[
"l",
"pink.momostr.activitypub:https://kolektiva.social/users/elijah/statuses/112397482609748338",
"pink.momostr"
]
],
"content": "Protonmail is cop friendly. Any reasonable privacy aware email provider would hash the secondary email, not store it as cleartext. I implemented secondary email hashing for Riseup to prevent exactly this thing, over a decade ago.\n\nhttps://restoreprivacy.com/protonmail-discloses-user-data-leading-to-arrest-in-spain/",
"sig": "ac01126c86ab22980c239a0f5b9657e98fdfb2fe79971d87b18fa5e67402dae6687f01ec603c86d78319433887c089ea45a61fa0660a7e63b862dffedf5f66ac"
}