Special Coverage: Dark side of the Internet: malware and cyber-crime

Opinion: How data breaches affect the corporate bottom line

Headlines on hacking often focus on potential harm to consumers whose data is stolen, but until now there hadn’t been a systematic analysis of the effects of cyberattacks on a company’s sales, market valuation and other metrics.

Online cannabis dealer gets nearly 7 years in prison

Federal prosecutors say he did his business on the “dark web,” which swirls with online deals for drugs, weapons and stolen bank-account data, often conducted in bitcoin.

Social engineering dominates cyberattacks against business

Most hacking against companies comes from a naive employee clicking on a link or attachment.

Opinion: Think hackers won’t find your business? Big mistake

If your business was not large, or in politically charged industry, then it was generally safe from targeted cyberattacks. Those days are over, writes information-security expert David Trepp.

Email lures CEOs into cyberfraud

Darknet Codeshop allowed criminals to shop for bank customer data specifically by bank or city.

Digital 9/11 looms as massive business risk

Bank security officials assume hackers have already penetrated the network.

Credit agency hit by high-tech heist

Are you one of the 143 million affected by the Equifax data breach?

Santa Rosa hotel guest info gets hacked

A third-party reservation system is to blame for a breach in guest credit card information at Santa Rosa’s The Sandman Hotel.

Marin clinics hit with computer virus

While no personal or financial data was found to be compromised, weeks’ worth of patient information was lost from a ransomware computer virus.

Cybercrime: High return, low risk

Email poses the biggest cybercrime risk to companies, says a network security expert.

Visa promises faster chip cards

Visa is upgrading software to process chip-embedded credit and debit cards to address complaints about slow transactions.

Cybercrime: Rising threat to business

In the murky realm of cybercrime against businesses, bad guys have the upper hand. Professionals who fight them offer tips on vulnerabilities and defenses.

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