Eyal Gruper

Bitcoin | Recovery and Inheritance | Self-custody advocate | Founder & CEO at @RitrekRecovery

[Eyal Gruper @egruper]

@yuval_weinreb זה נקרא DMS - Dead Man Switch, ויש לזה שימושים נרחבים מאוד אם רוצים להצמיד טכנולוגית אירוע של מוות/חוסר תגובה ולפעולה כלשהי בקצה השני, כמו להעביר נכסים לאדם/ישות שהוגדרה מראש.

[Eyal Gruper @egruper]

@Joesdoors Pros.

[Ady Shimony @adyshimony]

@Bitcoin_Teddy "And freedom of speech".
He was smart to realize that arbitrary data is an amazing freedom feature and not spam that should be eliminated.

[Eyal Gruper @egruper]

@callebtc Always

[Eyal Gruper @egruper]

@KLoaec @Wizardsardine Been waiting for that!

[Eyal Gruper @egruper]

@bijan_sha @TalHarelTal This is exactly why we build @RitrekRecovery, to enable trustless Recovery with a simple 1-click solution, 100% self-custody.

[Eyal Gruper @egruper]

Me and @oren_z0 were hosted in another Bitcoin Basics episode by @BitcoinIL, hosted at the @BitcoinemBassy

Send it to your fellow Hebrew speaker future-Bitcoinee who didn't get it yet.

[Israeli Bitcoin Association @BitcoinIL]

השבוע באנשי הביטקוין -
פרק רביעי בסדרת Bitcoin Basics!
שיחה עם @egruper ואורן זומר על איך ביטקוין באמת עובד מאחורי הקלעים.

🎧להאזנה: https://t.co/YKL4hzenPL
▶ לצפייה ביוטיוב: https://t.co/1txEJ5pX1i
💬הצטרפו לקבוצת העדכונים הרשמית של האיגוד בוואטסאפ: https://t.co/1kYyqgwFzf

[Eyal Gruper @egruper]

Happy to be hosted with @oren_z0 talking about Bitcoin wallets, as part of the Bitcoin Basics podcast series by @BitcoinIL at @BitcoinemBassy

[Israeli Bitcoin Association @BitcoinIL]

השבוע בפודקאסט "אנשי הביטקוין" @egruper ואורן זומר, מייסדי @RitrekRecovery מצטרפים אלינו לפרק השלישי בסדרת Bitcoin Basics , והפעם: כל מה שרציתם לדעת על ארנקי ביטקוין.

להאזנה: https://t.co/Tl0MeeNsWI

[Eyal Gruper @egruper]

Transaction with a fee of 1 Bitcoin.

[Vivek Sen @Vivek4real_]

SOMEONE JUST PAID $105,000 IN FEES FOR THEIR $10 #BITCOIN TRANSFER 🤯

[Eyal Gruper @egruper]

Had a great time yesterday at @BitcoinemBassy
diving into self-custody, recovery & inheritance -
the risks, the trade-offs, and how not to lose your ₿itcoin.
Loved sharing what we’re building at @RitrekRecovery,
more soon!

#Bitcoin #SelfCustody

[RITREK @RitrekRecovery]

Every week, stories like this appear.
A family loses not just someone they loved, but also access to what they built together.

Bitcoin gives freedom, but freedom without recovery is fragile.

RITREK helps you prepare for the unthinkable, without ever giving up your keys.

[Eyal Gruper @egruper]

Another week - another lost bitcoin case:
Just talked to a guy that permanently lost access to his coins.

He didn't have a backup plan and relied 100% on a hot wallet application on his iphone.
He factory-reset his device, not knowing that the private keys will be lost forever.

This kind of story is the reason why we started @RitrekRecovery, to make self-custody easy and recoverable.

[Eyal Gruper @egruper]

@garvitgoel03 @lopp @LukeDashjr Love it

[RITREK @RitrekRecovery]

A ghost can’t haunt you.
But a lost seed can.

Happy Halloween 🎃

[Eyal Gruper @egruper]

https://t.co/6xTHMkAl9s

[Eyal Gruper @egruper]

Today, 17 (prime) years ago, the Bitcoin White Paper saw first light.
Pretty amazing where we have gotten so far.
"Code money", "hard asset", a "fine-tuned orchestra".
So many moving parts, incentivized.
A community.
An ethos.
A cpp creation that reminds us nature.

Free yourself.

[RITREK @RitrekRecovery]

Timelocks decide when your Bitcoin can move.
They’re essential for recovery and inheritance solutions.

But here’s the catch:
Most hardware wallets don’t show them, leaving users in the dark about timelock conditions.

A silent UX + security gap.

[Eyal Gruper @egruper]

This is a brutal reminder:
If you don’t hold your keys, you don’t control your Bitcoin.

“Trusted” hardware like Intel SGX / AMD SEV can be compromised with basic physical access - researchers just did it with a ~$1K setup.

No custodian, cloud, or “secure enclave” changes this reality.

#nyknyc

[Daniel Genkin @DanielGenkin]

More interposer fun, this time with DDR5 memory. Breaking TDX, SGX, SEV and even Nvidia TEEs. Checkout our work at https://t.co/Jl1dpGnM6J, and get a personally-signed Intel attestation report at @TEEdotFail.

[Eyal Gruper @egruper]

@hasolidit Chance for stacking some sats