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CybersecurityCybersecurity

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Sublime Raises $150 Million for AI-Powered Email Security

By Kim S. Nash

 

Hello. Email security specialist Sublime Security has raised $150 million in a Series C round, as artificial intelligence continues to reshape the way companies guard their biggest communication asset—and weakest point of defense.

My colleague James Rundle has the exclusive story.

Also today: 

  • F5 warns of revenue ding after cyberattack disclosure
  • Images, screenshots from internal video meetings hacked at Jewitt-Cameron
  • Nova Scotia Power behind on contractor payments as hack effects linger for seven months
  • And more
 

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CONTENT FROM: ZSCALER
Why CIOs Are Adopting A Cafe-like Branch Architecture

Ransomware attacks often start with one compromised user — a single user in a branch can infect everything on your network. This is facilitated by an underlying design principle of MPLS and SD-WAN — lateral movement. Zscaler CEO Jay Chaudhry explains why CIOs are embracing cafe-like branches to stop ransomware, increase business agility and reduce cost.

It’s time to embrace cafe-like branches

 

More Cyber News

PHOTO: AVISHEK DAS/ZUMA PRESS

F5 expects revenue to take a hit from a recent cyber attack that compromised software used by government agencies. Fiscal 2026 is expected to be flat to up 4%, F5 said Monday. That's below the roughly 9% growth analysts polled by FactSet anticipated. The cyberattack, reported this month, could prompt some customers to delay or cancel deals, Chief Executive François Locoh-Donou said. (WSJ)

  • F5 in August discovered that nation-state hackers had gained long-term access to some of its systems. The company, which serves many government agencies, disclosed the event on Oct. 15, prompting the U.S. to issue an emergency order giving all government civilian organizations one week to patch their F5 products.

Sensitive 10-K data stolen: North Plains, Ore.-based Jewitt-Cameron Trading said hackers stole information the company was preparing for an upcoming 10-K filing, along with images and screenshots from internal video meetings. (SecurityWeek)

  • The hackers have threatened to publish the information if the company doesn't pay a ransom demand, Jewitt-Cameron said in a disclosure to the Securities and Exchange Commission. The company didn't say whether it would pay. Jewitt-Cameron makes fencing and other outdoor products.
  • The Oct. 15 ransomware attack also disrupted corporate tech and operations systems, which could affect financial results, the company said.  

Patients' images breached: California plastic surgery practice Michael R. Schwartz is notifying patients that their personal data and photographs are at risk after its computer systems were accessed between Jan. 20 and Aug. 26. (Databreaches.net)

More than seven months after a cyberattack, Canadian utility Nova Scotia Power remains behind paying business partners and contractors. Problems with internal tech systems mean some of the invoicing process is still manual and the company has hired temporary workers to help. Some suppliers are owed tens of thousands of dollars. (Western Investor)

U.K. financial services firm Capita was fined £14 million, or about $18.7 million, for privacy violations related to a 2023 ransomware attack. Failure to stop the hackers as well as other security problems led to the theft of personal data for 6.7 million customers, the U.K. Information Commissioner's Officer said. 

More money: Chainguard, a startup that makes tools for securing open-source software, raised $280 million from General Catalyst. Total funding for Chainguard is nearly $900 million. It was valued at $3.5 billion in an April funding round. (SecurityWeek)

10 Years

Amount of time the U.S. government has provided free identity-protection services to victims of the 2015 data-breach at the Office of Personnel Management. OPM said it is ending the service, having fulfilled its obligation under a $65 million settlement. (Federal News Network)

About 21 million current and former government employees and their families had their data stolen in the hack, which U.S. officials attributed to Chinese state-sponsored attackers. (WSJ)

 

About Us

The WSJ Pro Cybersecurity team is Deputy Bureau Chief Kim S. Nash and reporters Angus Loten and James Rundle. Follow us on X @WSJCyber. Reach the team by replying to any newsletter you receive or by emailing Kim at kim.nash@wsj.com.

 
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