Federal agents infiltrated the “Hive Ransomware Group,” seizing its website and dismantling much of its digital infrastructure in a major cyber crackdown.

Baltimore County Public Schools failed to act on several state recommendations before a November 2020 hack, a state inspector general's report says.

Addresses, phone numbers and dates of birth were stolen but the company says credit cards were not exposed.

FBI Director Christopher Wray described how his agency saw an increase in cyberattacks from Russia at the beginning of its invasion of Ukraine

T-Mobile says they discovered a "bad actor" was taking information through a single application, according to an SEC filing by the company this week.

Iowa’s largest school district has cancelled classes for Tuesday after determining there had been a cyber attack on its technology network

The leading hospital in India’s capital is limping back to normalcy after a cyberattack crippled its operations for nearly two weeks

The agency director echoed President Biden's warning on Monday.

A man who authorities say participated in a ransomware campaign that extracted tens of millions of dollars from victims has been charged in the United States

The White House is bringing together three dozen nations, the European Union and a slew of private-sector companies for a two-day summit that looks at how best to combat ransomware attacks

U.S. prosecutors say a Ukrainian man has been arrested on federal cybercrime charges in an alleged scheme that for years used malware to steal information from millions of people around the world

Iran says the hackers were acting on behalf of an unidentified foreign country.

The data includes patients' diagnoses and treatments.

At least 12 airports in the U.S. and worldwide were targeted for cyberattacks Monday by an attacker within the Russian Federation, a senior official confirmed to ABC News.

White House National Security Council spokesman John Kirby said it's still "too soon to know" whether the Russian government was behind the cyberattacks on U.S. airports.

Computer engineers and programmers from some of the nation's biggest airports are scrambling to protect their websites after a coordinated attack by hackers inside Russia.

A senior official briefed confirmed some of the nation's largest airports have been targeted for cyberattacks by an attacker within the Russian Federation.

Officials claim the attacker was with the Russian Federation.

Three Iranian nationals have been indicted for allegedly hacking into hundreds of computers in the U.S. and around the world, demanding, and sometimes getting, a ransom.

Federal law enforcement officials said they anticipate ransomware attacks against schools may increase as the 2022/2023 school year begins.

Goldman Sachs is investing $125 million into cyber security as a part of a new strategic investment into Fortress Information Security.

Hackers pretended to be law enforcement officials and gained access to users’ data.

Cyber security expert Kristopher Schroeder says Ukraine has done a great job defending itself from Russian cyberattacks amid continued warnings from the U.S. of Russian cyber warfare.

ABC News' chief justice correspondent Pierre Thomas has an exclusive look inside the NSA exercises to prepare for a potential cyberattack.

U.S. law enforcement officials are encouraging Americans to update their anti-virus and anti-malware software.

ABC News’ chief justice correspondent Pierre Thomas discusses President Joe Biden’s response to Russia’s invasion of Ukraine and what the White House is calling a “devastating packages of sanctions.”

Security officials are on high alert for the possible threat of Russian cyberattacks, not just in Europe, but here in the U.S. Could such attacks drag the U.S. into war?

ABC News’ Linsey Davis speaks with former President Donald Trump’s Homeland Security Adviser and ABC News contributor Tom Bossert about the cybersecurity threat from Russia.

Homeland security officials say that Russia may target U.S. infrastructure and banking systems in cyberattacks. Howard Marshall, global cyber threat intelligence lead at Accenture Security, explains.

Homeland cyber security officials and the FBI have been aggressively warning private industry leaders and governors about the potential for Russia’s hacking.

It comes as other U.S. agencies warned of Russia's cyber capabilities.

NewsCorp hit with cyberattack, allegedly from China.

Canada’s foreign affairs department was hit with a cyberattack last week, according to the Treasury Board of Canada.

The agency warned consumers that criminals are tampering with some codes to steal information and money.

A top government cybersecurity official on Tuesday warned "hundreds of millions of devices" could be linked to vulnerable software.

The vulnerability is linked to a commonly used piece of software called Log4j, a utility that runs in the background of many commonly used software applications.

The FBI and Homeland Security told critical industries and businesses to be on the lookout for crippling ransomware attacks during holidays and weekends.

Cyber Command has over 2,000 military personnel from soldiers to civilians who are focused on securing the nation from foreign threat actors.

Pierre Thomas goes inside the NSA in an exclusive interview with its director, Gen. Paul Nakasone.

Every day there are millions of attempts to scan America's cyber networks from foreign adversaries, Director of the National Security Agency Paul Nakasone says.

The nation's top law enforcement officials announced on Monday the seizure of approximately $6 million in ransom payments and new criminal charges.

The Cybersecurity and Infrastructure Security Agency has issued a sweeping directive to federal agencies to fix hundreds of vulnerabilities in software and hardware.

Microsoft on Monday alleged that the Russian nation-state actor behind the SolarWinds hack at it again, this time attacking the global supply chain.

After being hit with a ransomware attack, Howard University was forced to cancel classes Tuesday, but it didn't say who was behind it or what the demand was.

The government tells companies to stay alert for potential cyberattacks over Labor Day.

Instead of a complex series of letters, numbers, and symbols, they say random words create unusual letter combinations, which are more difficult for hacking software to guess.

The Justice Department on Monday released an indictment charging four Chinese nationals with state-backed worldwide hacking campaign.

The Justice Department on Monday released an indictment charging four Chinese nationals with state-backed worldwide hacking campaign.

The NSA, FBI and Homeland Security officials claim that China has been contracting with, and profiting from, criminal hackers who attack companies around the world.

A Russia-based hacking group is believed to be behind the latest ransomware attack targeting small businesses across the globe. ABC News’ Faith Abubey has more.