An alarming number of major U.S. retailers, industrial firms, government agencies and other organizations have been hit in a recent wave of cyberbreaches that may signal increasing vulnerability for consumers and businesses alike. The attacks have exposed millions of consumer payment cards to fraud. Cyberthieves have used a variety of methods to infiltrate corporate computer systems.

Nearly a week after it became the target of one of the largest ransomware attacks to date, the City of Atlanta has made progress toward recovery, but it is still far from business as usual. Hackers encrypted many of the city government's vital data and computer systems. Mayor Keisha Lance Bottoms characterized the ransomware attack as "a hostage situation."

The DoJ has charged nine Iranian nationals for engaging in a massive phishing campaign on behalf of the Iranian Revolutionary Guard. The allegations include the theft of $3.4 billion in research and intellectual property from 320 colleges and universities in the U.S. and abroad, as well as from 47 foreign and domestic companies, plus several federal agencies, state governments, and the UN.

A virtual currency hardware wallet with millions of users has been compromised. Saleem Rashid explained how he cracked the firmware on the wallet produced by Ledger using what's known as a "supply chain" attack. That means a targeted device is compromised before any users get their hands on it. The attack on Ledger's $100 Nano S wallet creates a backdoor on the device.

Americans have been targeted on social media by Russian agents on a mission to harvest personal information. The agents pretended to work for organizations promoting African-American businesses as a ruse to obtain personal information from black business owners during the 2016 presidential election campaign. Using names like "BlackMattersUS," the agents set up hundreds of social media accounts.

It's a truism that just like organizations adapt, so too do criminals. Anyone who has ever seen a Wells Fargo commercial knows that there was a time when stagecoaches were a normative method for transporting cash and valuables. But what modern criminals in their right mind would attempt robbing a Brink's truck on horseback? That strategy might have worked well in the days of the Pony Express.

Fraud is a major concern for 72 percent of businesses, according to Experian's Global Fraud and Identity Report. More than 5,500 consumers and 500 business executives in 11 markets around the world participated in the survey. The situation has not been improving, as six out of 10 businesses experienced the same losses to fraud as they did a year ago -- or more.

As beneficial as AI can be, it has its dark side, too. That dark side is the focus of a new 100-page report. AI will be used by threat actors to expand the scale and efficiency of their attacks, it predicts. They will employ it to compromise physical systems and to broaden their privacy invasion and social manipulation capabilities. Novel attacks are to be expected.

If you follow security news, you may have noticed a disturbing trend. Last year, we learned that Uber paid attackers $100,000 to keep under wraps their stealth of the personal information of 50 million Uber riders. More recently, we learned that Hancock Health paid approximately $55,000 in bitcoin to bring hospital systems back online. The payment of ransoms could be more common than it appears.

This holiday selling season may have been a good one for retailers, but every silver lining has a cloud. One shadow will be cast by chargeback fraud, which can occur when shoppers make purchases with a credit card and then request chargebacks from the issuing bank instead of from the merchant. "Merchants bleed $227 for every dollar lost to e-commerce fraud," said NuData's Robert Capps.

As powerful men drop like flies due to their inability to resist abusing their authority, it's clear that the problem is widespread. Similarly, it's likely that we'll find the problem of alleged industrial espionage is not limited to Uber. You see, when people misuse authority -- and the sexual harassment problem is a massive misuse of authority -- folks typically don't just misuse it in one area.

If you are like many, when you saw this headline you likely were surprised BlackBerry was still around. As BlackBerry phones left the market, the company fell out of sight. However, behind the scenes it has been moving into industries like automotive. Also, it remains the leading vendor providing mobile security to our politicians, military personnel and major corporations.

A security flaw in WPA2, the security protocol for most modern WiFi systems, could allow an attacker to steal sensitive data including emails, credit card numbers and passwords, Researchers at Belgian university KU Leuven reported Monday. Depending on the network configuration, the flaw also could allow an attacker to inject or manipulate information in the system.

Malicious code has been discovered in two versions of Piniform's CCleaner housekeeping utility, the company disclosed on Monday. Piniform is owned by Avast, whose security products are used by more than 400 million people. The malware infecting CCleaner could give hackers control over the devices of more than 2 million users. CCleaner is designed to rid computers and mobile phones of junk.

In a rare move, the U.S. Federal Trade Commission on Thursday confirmed that it has opened an investigation into the data breach at Equifax that compromised the sensitive personal information of 143 million U.S. consumers. The FTC announcement came less than a week after Equifax revealed that an unknown party had gained access to names, addresses, Social Security Numbers and other data belonging to nearly half the U.S. population.

Consumer credit reporting agency Equifax suffered a major criminal data breach that exposed personal information of as many as 143 million consumers in the U.S. between mid-May and July of this year. The attack exposed a range of sensitive personal data, including names, addresses, Social Security Numbers, dates of birth, and in some cases driver's license numbers, Equifax said.

The hacker group known as "Dragonfly" is behind sophisticated wave of recent cyberattacks on the energy sectors of Europe and North America, Symantec reported. The attacks could provide the group with the means to severely disrupt energy operations on both continents. Dragonfly launched a simililar campaign from 2011 to 2014, but it entered a quiet period in 2014 after its activities were exposed.

A relatively new form of cybercrime recently has been plaguing American consumers. Thieves have been hijacking mobile phone account numbers and then transferring services to a different device. Further, hackers have begun using mobile numbers to raid digital wallets and similar accounts. This type of theft has been successful even against the most sophisticated of consumers.

Ask any security practitioner about ransomware nowadays, and chances are good you'll get an earful. Recent outbreaks like Petya and WannaCry have left organizations around the world reeling, and statistics show that ransomware is on the rise. For example, 62 percent of participants surveyed for ISACA's recent "Global State of Cybersecurity" survey experienced a ransomware attack in 2016.

In a stunning twist, U.S. authorities have arrested a British cyber-researcher credited with stopping the spread of the WannaCry ransomware virus on charges he helped develop and deploy the Kronos banking trojan that attacked financial institutions around the world in 2014. A federal grand jury in Wisconsin last month handed down a six-count indictment against Marcus Hutchins, a citizen of the UK.

HBO on Wednesday admitted that it had been targeted by a cyberattack, confirming an anonymous email the alleged hackers distributed to media outlets last weekend. Among the content that may have been compromised were upcoming episodes of the series Ballers, Barry and Room 104, along with script outlines of the channel's hit show Games of Thrones.

A grand jury in the Northern District of California indicted a Russian man for running a massive money laundering operation through the BTC-e bitcoin exchange, a group of federal officials announced Wednesday. The exchange allegedly received up to $4 billion in proceeds from various criminal activities, including the 2014 hack of the Mt. Gox bitcoin exchange.

Recent ransomware threats have escalated into a global crisis, and cybersecurity experts and government authorities have redoubled their investigative efforts. Of grave concern is the possibility that the recent Petya attack had more sinister motives than typical ransomware operations, and that state actors were involved behind the scenes. The Petya attack actually used ransomware as a cover.

Malware targeting Linux systems is growing, largely due to a proliferation of devices created to connect to the Internet of Things. That is one of the findings in a report WatchGuard Technologies released last week. The report, which analyzes data gathered from more than 26,000 appliances worldwide, found three Linux malware programs in the top 10 for the first quarter of the year.

A new ransomware exploit dubbed "Petya" struck major companies and infrastructure sites this week, following last month's WannaCry ransomware attack, which struck more than 300,000 computers worldwide. Petya is believed to be linked to the same set of hacking tools as WannaCry. Petya already has impacted a Ukrainian international airport and shut down radiation monitoring systems at Chernobyl.

Federal and state officials have confirmed that cyberattacks against state voting systems during the 2016 election were more widespread than previously disclosed to the public, but they said the heightened activity did not impact final vote tallies. The confirmations follow a report that attempts to influence the 2016 presidential election were much greater than previously disclosed.

The WannaCry ransom attack that quickly circled the globe last week is not yet fully contained. So far, it has impacted more than 300,000 computers in 150 countries. However, one of the remarkable things about it is that only a trifling $100,000 in ransom, give or take, apparently has been paid. That represents a surprisingly low response from an attack generally considered the biggest ever.

Microsoft this weekend unleashed its wrath on the National Security Agency, alleging it was responsible for the ransomware attack that began last week and has spread to thousands of corporate, government and individual computer systems around the world. Microsoft Chief Legal Officer Brad Smith launched a blistering attack on the NSA and governments worldwide.

Authorities are investigating a massive ransomware attack that reportedly hit more than 45,000 computers in 74 countries worldwide, including the UK's NHS England national health service, international delivery service FedEx, and Spanish telecom firm Telefonica. Security experts have linked the exploit to an earlier leak by the Shadow Brokers, who allegedly pilfered hacking tools from the NSA.

More than 8,600 retail locations will shut down this year, following the 5,077 that closed last year, based on data from Credit Suisse. Moreover, 2017 could surpass 2008 -- the worst year for retail closures on record -- when 6,163 stores shut down operations. However, unlike 2008, when overall consumer spending declined with the onset of a global recession.