Amir Houmansadr

Professor of Computer Science, UMass Amherst. Security and Privacy researcher

[علی شریفی زارچی @SharifiZarchi]

اگر یک قاتل مسلح درون خانه‌تان بود، چند نفر را کشته بود و شما دست خالی بودید، بازهم سعی می‌کردید موضوع را در داخل خانه، با گفتگو و شیوه‌های مسالمت‌آمیز حل کنید، یا از دیگران کمک می‌خواستید؟
#R2PforIran
#IranMassacre
#IranRevolution2026
#DigitalBlackoutIran

[Ashkan Khatibi 🇮🇷 @KhatibiOfficial]

دوستم از اصفهان زنگ زد.
پسرعموش و ٧ تا از دوستاش كشته
شده بودن. ٢٧ دى براى پيدا كردن جنازه هاى عزيزاشون به باغ رضوان اصفهان رفته بودند.
حدود ٨ هزار جنازه كد خورده بوده .
٨ هزار تن بی‌جان فقط در اصفهان.
#نسل_کشی

[سیامک جوادی | Siamak Javadi @SiamakJavadi]

به همت همکاران و همرزمان عزیز در دانشگاه ایالتی کالیفرنیا (CSU) یه نامه سرگشاده برای ارسال به ترامپ تهیه شده.

از تمام همکاران عزیز که در دانشگاه‌های امریکا تدریس می‌کنند تقاضا میشه که از این نامه حمایت کنند. از باقی دوستان هم تقاضا میشه که از نامه حمایت کنند تا بلکه امضاهای بیشتری جمع بشه.

هر حرکتی - ولو سمبلیک - برای افزایش دیدن‌شدن (visibility) رنج مردم، قتل‌عامشون توسط وحوش رژیم و مزدوران خارجی‌اش و فشار به دولت ترامپ برای گرفتن یک تصمیم قاطع علیه ج‌ا‌ می‌تونه موثر باشه.

ممنون از حمایت‌تون.

برای امضا کردن، لطفا روی لینک زیر (گوگل‌داک) کلیک کنید:

https://t.co/I2urlaxW6R

[علی شریفی زارچی @SharifiZarchi]

Tehran prosecutor explicitly rejected Trump’s post about the non-execution of 800 people.

Reporter: "The U.S. president had tweeted and expressed thanks that no action had been taken against 800 individuals involved in these disturbances."
Tehran prosecutor: "Well, Trump always spews a lot of pointless nonsense — and he has no damn right to say such things. Our response is firm, deterrent, and swift. At this point, many of our cases have already resulted in indictments and have been sent to court."

[Martin @Martin_Sedi]

Horrific reports from Iran suggest the Islamic Republic has reached a new level of depravity. During the massive protests this January 2026, the regime is reportedly using toxic chemical substances to crush its own people a tactic echoing the darkest chapters of history.

The Brutal Reality:

• Chemical Warfare: Credible reports from GBNEWS indicate toxic agents are being used against protesters, causing high casualties and delayed onset deaths.

• Massive Death Toll: While an internet blackout hides the truth, estimates of those killed since early January range from 2,000 to as many as 30,000.

• Prisons as Black Holes: Facilities are overflowing; courtrooms are packed with families, yet no lawyers are permitted to defend the thousands detained.

• Unprecedented Violence: Security forces are reportedly firing machine guns indiscriminately into crowds.
When a regime uses chemical weapons on its own citizens, it has lost all claim to legitimacy. The world cannot look away while a "massacre under the cover of a blackout" unfolds.

@POTUS
@UN

#TrumpActForIran
#KingRezaPahlavi

[سیامک جوادی | Siamak Javadi @SiamakJavadi]

What happened in Iran is the largest and most lethal state massacre in modern history of the world after the Second World War. Even the 1989 Tiananmen crackdown had fewer casualties than what ayatollahs did to the Iranian protestors.

And for the record, 12,000 is a conservative figure. Almost all emerging anecdotal reporting that’s gradually coming out of Iran indicates this figure is far larger.

What is unfolding before our eyes can be easily described and characterized as crime against humanity in epic proportion.

It’s time for world leaders to act, intervene, and stop the regime’s atrocities.

Expelling IR ambassadors from your countries and shutting down your embassies in (occupied) Iran are a start.

[Ahmad Beirami @abeirami]

"A regime that massacres its own citizens has no red lines—and will not hesitate to kill the citizens of other countries as well."

The world needs to destroy this cancerous tumor once and for all!

[علی شریفی زارچی @SharifiZarchi]

I am an Iranian university professor. I was in Iran until last week and directly witnessed the uprising of the Iranian people. What is happening is a revolution born of desperation and courage. I fully and unequivocally endorse the speeches of Masih Alinejad and Ahmad Batebi at the UNSC. Every claim made by the Iranian regime—including by its foreign minister and its UN ambassador—is nothing but deliberate, systematic lies meant to cover up crimes.

The regime has already killed my friend Parsa Saffar, a brilliant medical student at Mashhad University. Was he a terrorist? His only “crime” was being young, educated, and Iranian. The regime has filled the country with thousands of body bags. Were they terrorists too? How unarmed protesters, many of which being very young students can be terrorists? Why the so called "terrorists" that the Iranian regime claims only kill protesters, and not the rally of regime supporters?

Understanding Iran is painfully simple. Iran possesses some of the world’s largest oil, gas, and natural reserves, yet the Islamic Republic has driven the country into collapse: one of the weakest economies in the region, the least-valued currency in the world, crushing inflation, families unable to afford food or rent, massive unemployment, and millions of young people unable to marry or build a future because of economic despair. The people are angry—and rightly so.

The Islamic Republic has turned Iran into a deadlock through aggression, corruption, killing its own citizens, silencing all free voices, and enforcing internet blackouts to hide its brutality. The Iranian people are demanding regime change—just as people did during the Arab Spring in Syria. The same cruel regime that sent forces to help Bashar al-Assad massacre Syrians is now using the same methods to massacre Iranians.

I call on the United Nations, the UN Security Council, and every single government to end their silence in the face of the Islamic Republic’s murder machine. A regime that massacres its own citizens has no red lines—and will not hesitate to kill the citizens of other countries as well. Act now. Stand with the Iranian protesters. End this brutal regime.

#IranMassacre
#IranRevolution2026
#DigitalBlackoutIran

[Sana Ebrahimi Ledene @SanaELedene]

Another evidence of Islamic Republic security forces shooting unarmed civilians point blank.

[Shabnam @shabidesign]

We need HELP! Now more than a week! An entire country cut off from the world.
90 million lives in digital darkness.
#DigitalBlackoutIran

[Mario Nawfal @MarioNawfal]

🚨🇮🇷 REPORT: IRAN DIDN'T STOP KILLING PROTESTERS... THEY TERRORIZED EVERYONE INTO STAYING HOME

Sources in Tehran tell The Post the streets are flooded with tanks and trucks full of machine gunners "aiming them at everyone."

The protests stopped because people are too afraid to step outside, not because the regime showed mercy.

"There are no protests anymore because of massive killings.

With 12,000 dead, people are terrified."

Families are being told to collect their relatives' bodies or they'll be dumped in mass graves.

Trump said yesterday the killing stopped.

The killing stopped because the streets are occupied by men with machine guns.

Source: NY Post

[Cina Foroutan-Nejad 🇮🇷 🇵🇱 @CForoutanNejad]

In the end, we will remember not the words of our enemies, but the silence of our friends.

Martin Luther King

Don't remain silent. Remaining silent is siding with the murderer.

[ئاریان - Aryan @ArianArian00]

یک هفته از قطع اینترنت ایران گذشت؛ یک هفته‌ای که افول انسانیت رو دیدیم.

#IranRevolution2026
#DigitalBlackoutIran

[Amnesty International USA @amnestyusa]

Verified videos and credible information from eyewitnesses in Iran reveal mass unlawful killings committed on an unprecedented scale amid an ongoing internet shutdown imposed by the authorities since January 8 to conceal their crimes.

https://t.co/EnpE4n9lAA

[Hemad Nazari @Hemadnazari]

Islamic Republic forces are raiding hospitals and executing wounded civilians in their beds, point-blank.
Unarmed. Defenseless.
This is not “repression.” It is a crime against humanity.
Silence makes the world complicit.
#IranMassacre

[Zachary Novack @zacknovack]

Suno + Veo 3 generate highly similar versions of popular songs purely based on *phonetically* similar gibberish lyrics?!?!

Presenting Bob’s Confetti: Phonetic Memorization Attacks in Music and Video Generation

🔊: https://t.co/Rztf9TNhI7
📖: https://t.co/H7BgnUkCvD

🧵1/n

[Zachary Novack @zacknovack]

As models like Suno/Veo grow, ensuring safety + copyright compliance will require defenses against such phonetic attacks.

See our paper for more, + huge thanks to the dream team @JaechulRoh @yuefengpeng @niloofar_mire @BergKirkpatrick @houmansadr !

https://t.co/H7BgnUlalb

6/6

[gfw.report @gfw_report]

Our USENIX Security’23 paper, “How the Great Firewall of China Detects and Blocks Fully Encrypted Traffic,” won the 2025 Caspar Bowden Award for Outstanding Research Runner-up at PETS'25! Thanks to @PET_Symposium and all our amazing co-authors.
Our paper: https://t.co/IXp4fA9gpF

[gfw.report @gfw_report]

Our NDSS'25 "Wallbleed" paper has received the FOCI'25 Best Practical Paper Award. 🏆

This work was a true labor of love, and we are deeply grateful for the recognition from the Internet freedom community and support from everyone on this long journey.

https://t.co/asnRX3Vv4m

[Anshuman Suri @iamgroot42]

The privacy-utility tradeoff for RAG is much worse than you think. Our work detailing one such (stealthy) MIA, now accepted to CCS'25 @acm_ccs !