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U.S. officials used Signal to share war plans. What is the messaging app and is it safe?

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U.S. officials used Signal to share war plans. What is the messaging app and is it safe?

Senior government officials mistakenly invited the editor in chief of the Atlantic to a group chat on the messaging app Signal, where the focus of conversation was U.S. airstrikes against rebel groups in Yemen. The app’s use by high-ranking national security officials has raised the question: Just how secure is Signal anyway?

On March 11, Jeffrey Goldberg of the Atlantic was accidentally invited by the Trump administration’s national security advisor to connect on Signal. In the following days, Goldberg was added to a group chat that spoke of “operational details of forthcoming strikes on Yemen, including information about targets, weapons the U.S. would be deploying and attack sequencing,” according to his reporting.

Signal is a free app that cybersecurity experts consider to be one of the most secure messaging services because of its end-to-end encryption.

Simply put, text messages or calls are seen only by you, the sender and whoever is in your Signal group chat.

“We can’t read your messages or listen to your calls, and no one else can either,” the Signal website states.

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If you’re using only your smartphone’s default messaging app, such as Apple’s iMessage or Google Messages, there is a chance your messages won’t be secure. This happens when you’re an iPhone user who texts an Android user, because you’re messaging from different platforms. Messages are end-to-end encrypted only if both people are using the same app.

Signal also touts user protection because it doesn’t use ads and doesn’t track user data. It collects only minimal user data, such as your phone number, the date you joined Signal and the last date you logged on to the app.

Aside from top government officials, journalists and advocates use the app, but it’s not limited to these groups of people.

With Signal in the news, experts are weighing in on whether the average user should consider it as an option for your everyday communication.

Why should you care about encrypted messaging?

Encrypted messaging “protects more than national secrets; it protects everyday privacy,” said Vahid Behzadan, assistant professor of cybersecurity and networks, data and computer science at the University of New Haven.

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Most people unknowingly share sensitive information via text, such as personal addresses, passwords for Netflix and other accounts, or photos, according to Iskander Sanchez-Rola, director of artificial intelligence and innovation for Norton.

Encrypted apps ensure your messages are seen only by the person you intended to reach — and not third parties. That also means your “internet service provider or any potential malicious actors on your network won’t be able to see them either,” Sanchez-Rola said.

Cybercriminals are paying attention to your messages.

In December the FBI and the Cybersecurity and Infrastructure Security Agency stated that hackers affiliated with China’s government, called Salt Typhoon, waged an attack on commercial telecommunications companies to steal users’ data and prompted federal authorities to recommend everyone use only end-to-end encrypted communications.

Ninety percent of all cyberthreats now originate from scams and social engineering threats — a figure that has almost tripled since 2021,” Sanchez-Rola said. “Everyday activities like forwarding messages or even clicking links and attachments can open the door to risks if your information isn’t properly protected.”

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By using a messaging app that ensures end-to-end encryption, Behzadan said, you’re protecting yourself from data breaches and identity theft, and corporate tracking and targeted advertising, and ensuring confidentiality in professional or legal communications, freedom from surveillance or unauthorized access, and insurance against potential policy or government changes that may erode privacy rights.

“In short, encryption helps preserve digital dignity and autonomy in an increasingly connected world,” he said.

How is Signal a standout from other messaging apps when it comes to privacy?

All communications (messages, calls and video chats) are end-to-end encrypted by default, so you don’t have to go out of your way to ensure it’s a feature,” Behzadan said.

Unlike many platforms, Signal does not store metadata about who users communicate with, when or where.

“Its encryption protocol, the open-source Signal Protocol, is widely regarded as the gold standard in secure messaging and is even used by WhatsApp and Facebook Messenger for certain chats,” he said.

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Signal’s nonprofit structure also sets it apart: The organization doesn’t monetize user data, which reduces incentives for surveillance or advertising-driven features.

Sanchez-Rola added a few more features that amplify securing your privacy:

  • Screenshot blocker. This prevents malicious apps on your phone from accessing screenshots, but doesn’t prevent other people from taking screenshots of your conversations.
  • Disappearing messages. Messages automatically delete after a set time, configurable from five seconds to four weeks, after they’ve been read. So even if a malicious app gains access to your phone, it won’t be able to retrieve messages that have been deleted.
  • Single-view media. This allows you to send photos, videos and voice messages that are automatically deleted from the recipient’s device after they’ve been opened once.
  • Incognito keyboard. This prevents third-party keyboard apps from potentially collecting data about your typing, offering an extra layer of privacy, especially when sending sensitive information.
  • Usernames versus phone numbers. You can talk to people on Signal without needing to know their phone number — just by using their Signal username. This provides an extra layer of privacy.

How effective is Signal in protecting your privacy?

Signal’s terms of service state you “are responsible for keeping your device and your Signal account safe and secure.”

“The effectiveness of encryption isn’t just about the technology; it also depends on how individuals use it. Encryption works best as part of a larger cybersecurity strategy,” Sanchez-Rola said.

Behzadan shared a few important best practices. They include:

  • Enabling disappearing messages for sensitive chats.
  • Verifying safety numbers with trusted contacts.
  • Setting a strong PIN or enabling biometric lock.
  • Keeping the app and device updated.
  • Avoiding screenshots or storing sensitive info on unsecured devices.

“The recent incident involving U.S. officials underscores this: Even the most secure technology can’t prevent human error, like adding the wrong person to a group chat,” Behzadan said. “In cybersecurity, the weakest link is often the human element.”

What are other encrypted messaging apps?

While Signal is the top recommendation among security experts, other apps offer encrypted messaging with varying trade-offs:

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  • WhatsApp: Uses the Signal Protocol but is owned by Meta and collects more metadata.
  • Threema: A Swiss-based app that doesn’t require a phone number and focuses on privacy, though it has a smaller user base.
  • Element (Matrix protocol): A decentralized and open-source option, popular among tech-savvy communities.
  • Wickr: Used in enterprise and government settings and now owned by Amazon.

The best choice depends on your specific needs, your threat model and what platforms your contacts use, because encryption works only if both parties use the same secure platform.

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Trump admin files first racketeering charges against massive migrant terrorist group present in U.S.

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Trump admin files first racketeering charges against massive migrant terrorist group present in U.S.

The first RICO racketeering charges against members and associates of the migrant terrorist group Tren de Aragua were filed this week in New York.

A statement by the U.S. Attorney’s Office for the Southern District of New York said that the case is part of “Operation Take Back America,” which it said is a “nationwide initiative that marshals the full resources of the Justice Department to repel the invasion of illegal immigration, achieve the total elimination of cartels and transnational criminal organizations (TCOs), and protect our communities from the perpetrators of violent crime.”

According to the statement, the charges filed against 27 alleged current and former Tren de Aragua (TdA) members include human smuggling, sex trafficking and murder.

“Today, we have filed charges against 27 alleged members, former members, and associates of Tren de Aragua, for committing murders and shootings, forcing young women trafficked from Venezuela into commercial sex work, robbing and extorting small businesses, and selling ‘tusi,’ a pink powdery drug that has become their calling card,” announced Matthew Podolsky, the Acting United States Attorney for the Southern District of New York. 

PRESIDENT TRUMP BLASTS COURTS FOR GETTING IN THE WAY OF DEPORTATION AGENDA

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This image shows two Tren de Aragua gang members caught at the southern border. (U.S. Border Patrol)

Podolsky said that the indictments “make clear that this Office will work tirelessly to keep the law-abiding residents of New York City safe, and hold accountable those who bring violence to our streets.”

The charges were filed in two separate indictments, the first against six alleged current members of Tren de Aragua and the second against 21 alleged members and associates of a splinter gang known as “Anti-Tren,” which consists of former TdA members.

The Trump State Department has designated Tren de Aragua, as well as several other migrant gangs present throughout the U.S., as foreign terrorist organizations.

The U.S. Attorney’s Office for the Southern District of New York said that 21 of the 27 alleged gang members and associates are currently in federal custody. The statement said that 16 were already in federal criminal, immigration, or state custody and five were arrested over the last couple of days.

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OHIO SHERIFF DEFENDS NEW ICE PARTNERSHIP: ‘JUST DOING THE RIGHT THING’

DHS Secretary Noem tours El Salvador prison

DHS Secretary Kristi Noem toured the El Salvador prison holding hundreds of alleged members of Tren de Aragua who were deported from the U.S. (Credit: Pool)

Most of the alleged gang members are in their twenties, with the oldest being 44. Many are facing multiple life in prison sentences if they are found guilty.

Charges include racketeering, sex trafficking, alien importation, drug trafficking and carjacking conspiracy, robbery, illegal firearms possession and use and extortion.

CLICK HERE FOR MORE IMMIGRATION COVERAGE

Among the most egregious of the charges included in the indictments are the smuggling of “multadas” – indentured sex workers – from Venezuela into Peru and the U.S. According to the U.S. Attorney’s Office statement, both TdA and Anti-Tren operate keep the multadas trapped in a life of sex slavery by threatening to kill them and their families and by assaulting, shooting and killing them and tracking down those who attempted to flee.

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U.S. Attorney General Pam Bondi commented on the RICO charges, saying: “Today’s indictments and arrests span three states and will devastate TdA’s infrastructure as we work to completely dismantle and purge this organization from our country.” 

GORSUCH, ROBERTS SIDE WITH LEFT-LEANING SUPREME COURT JUSTICES IN IMMIGRATION RULING

Pam Bondi speaks to reporters

Attorney General Pam Bondi speaks during a news conference at the Department of Justice headquarters in Washington, Wednesday, April 16, 2025.  (AP Photo/Jose Luis Magana)

“Tren de Aragua is not just a street gang,” said Bondi. “It is a highly structured terrorist organization that has destroyed American families with brutal violence, engaged in human trafficking, and spread deadly drugs through our communities.”

New York Police Department Commissioner Jessica Tisch also praised the operations, saying that “for the first time ever, TdA is being named and charged as the criminal enterprise that it is.”

 

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“This gang has shown zero regard for the safety of New Yorkers,” said Tisch. “As alleged in the indictment, these defendants wreaked havoc in our communities, trafficking women for sexual exploitation, flooding our streets with drugs, and committing violent crimes with illegal guns. Thanks to the dedicated members of the NYPD and the important work of our federal partners, their time is up.”

The U.S. Attorney’s Office statement also mentioned that this case received significant support from Joint Task Force Vulcan, a collection of U.S. attorneys’ offices and law enforcement agencies that was created in 2019 to eradicate the Salvadoran gang MS-13 and has now expanded to target Tren de Aragua. 

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Supreme Court appears to favor parents' right to opt out of LGBTQ+ stories for their children

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Supreme Court appears to favor parents' right to opt out of LGBTQ+ stories for their children

The Supreme Court justices sounded ready on Tuesday to give parents a constitutional right to opt out of public school lessons for their children that offend their religious beliefs.

At issue are new “LGBTQ-inclusive” storybooks used for classroom reading for pre-kindergarten to 5th grade in Montgomery County, Md., a suburb of Washington where three justices reside.

In recent years, the court’s six conservatives have invoked the “free exercise of religion” to protect Catholic schools from illegal job-bias claims from teachers and to give parents an equal right to use state grants to send their children to religious schools.

During an argument on Tuesday, they strongly suggested they would extend religious liberty rights to parents with children in public schools.

“They are not asking to change what is taught in the classroom,” Justice Brett M. Kavanaugh told an attorney for the court.

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“As a lifelong resident of the county, I’m mystified at how it came to this. They had promised parents they would be notified and allowed to opt out” if they objected to the new storybooks, he said. “But the next day, they changed the rule.”

Chief Justice John G. Roberts Jr. and Justice Neil M. Gorsuch also live in Montgomery County, and both have been reliable supporters of religious liberty claims.

Nearly every state, including Maryland and California, has a law that allows parents to opt out of sex education classes for their children.

When the new storybooks were introduced in the fall of 2022, parents were told their young children could be removed from those lessons. But when “unsustainably high numbers” of children were absent, the school board revoked the opt-out rule.

They explained this state rule applied to older students and sex education, but not to reading lessons for elementary children.

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In reaction, a group of Muslim, Catholic and Ukrainian Orthodox parents filed a suit in federal court, seeking an order that would allow their children to be removed from class during the reading lessons.

They said the books conflicted with the religious and moral views they taught their children.

A federal judge and the 4th Circuit Court refused to intervene. Those judges said the “free exercise” of religion protects people from being forced to change their conduct or their beliefs, neither of which were at issue in the school case.

But the Supreme Court voted to hear the parents’ appeal in the case of Mahmoud vs. Taylor.

Representing the parents, Eric Baxter, an attorney for the Becket Fund for Religious Liberty, stressed they “were not objecting to books being on the shelf or in the library. No student has a right to tell the school which books to choose,” he said. “Here, the school board is imposing indoctrination on these children.”

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Alan Shoenfeld, an attorney for the school board, said its goal for the new storybooks was “to foster mutual respect. The lesson is that they should treat their peers with respect.”

He cautioned the court against adding a broad new right for parents and students to object to ideas or messages that offend them.

The Becket attorneys in their legal brief described seven books they found objectionable.

One of them, “Pride Puppy,” is a picture book directed at 3- and 4-year-olds. It “describes a Pride parade and what a child might find there,” they said. “The book invites students barely old enough to tie their own shoes to search for images of ‘underwear,’ ‘leather,’ ‘lip ring,’ [drag] king’ and [drag] queen.’”

Another — “Love, Violet” — is about two young girls and their same-sex playground romance.

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“Born Ready” tells the story of a biological girl named Penelope who identifies as a boy.

“Intersection Allies” is a picture book also intended for early elementary school classes.

“It invites children to ponder what it means to be ‘transgender’ or ‘non-binary’ and asks ‘what pronouns fit you?’” they said. Teachers were told “to instruct students that, at birth, doctors ‘guess about our gender,’ but ‘[w]e know ourselves best.’”

They said teachers were instructed to “disrupt the either/or thinking” of elementary students about biological sex.

After the case reached the Supreme Court, two of the seven books were dropped by the school board, including “Pride Puppy.”

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Video: Hegseth Attacks the Media Amid New Signal Controversy

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Video: Hegseth Attacks the Media Amid New Signal Controversy

new video loaded: Hegseth Attacks the Media Amid New Signal Controversy

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Hegseth Attacks the Media Amid New Signal Controversy

During the Easter Egg Roll at the White House, Pete Hegseth called coverage of his sharing of sensitive military data via text with civilians a “smear.”

“We’re happy to be here at the Easter Egg Bowl, I’ll tell you that — A few leakers get fired and suddenly a bunch of hit pieces come out. Hoaxsters. This group — no, no, no, — this group right here, full of hoaxsters that peddle anonymous sources from leakers with axes to grind, and then you put it all together as if it’s some news story. I’m going to go roll some Easter eggs with my kids.” “Are you bringing up Signal again? I thought they gave that up two weeks ago. Just the same old stuff from the media. That’s an old one. Try finding something new.”

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Recent episodes in U.S.

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