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What Is a Firewall and Do you Need One?

Adam Levin

A firewall is a network security device or program designed to prevent unauthorized and malicious internet traffic from entering a private network or device. Firewalls filter incoming network traffic at a computer’s entry points, or ports, where information is exchanged between the computer network and external devices. Probably not.

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News alert: Knocknoc raises seed funding to scale its just-in-time network access control technology

The Last Watchdog

19, 2025, CyberNewswire — Sydney-based cybersecurity software company Knocknoc has raised a seed round from US-based venture capital firm Decibel Partners with support from CoAct and SomethingReal. Sydney, Australia, Mar. The funding will support go-to-market, new staff, customer onboarding and product development.

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Top 9 Trends In Cybersecurity Careers for 2025

eSecurity Planet

Technologies that were figments of the imagination a dozen years ago, if they were conceived of at all, quickly become mainstream — think generative artificial intelligence (GenAI) or blockchain. As they do, they create more security vulnerabilities and inherent business, changing the nature of cybersecurity careers. million workers.

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American Water Shuts Down Services After Cybersecurity Breach

eSecurity Planet

The American Water cyber breach has sparked conversations about the importance of cybersecurity in safeguarding essential services and the growing frequency of cyber threats targeting public utilities. While water services were not interrupted, the breach temporarily paused the company’s billing operations, causing customer concern.

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OT Cybersecurity and the Evolving Role of Controls Engineers

SecureWorld News

Industrial automation and operational technology (OT) are at a critical intersection where cybersecurity is not a "nice to have" but an essential component of system design and implementation. These developments reflect the growing maturity of the OT cybersecurity field. However, the landscape has changed.

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Cybersecurity Firm Imperva Discloses Breach

Krebs on Security

Imperva , a leading provider of Internet firewall services that help Web sites block malicious cyberattacks, alerted customers on Tuesday that a recent data breach exposed email addresses, scrambled passwords, API keys and SSL certificates for a subset of its firewall users. Redwood Shores, Calif.-based

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News alert: INE Security shares cyber hygiene guidance for small- and medium-sized businesses

The Last Watchdog

As small businesses increasingly depend on digital technologies to operate and grow, the risks associated with cyber threats also escalate. Warn “Small businesses face a unique set of cybersecurity challenges and threats and must be especially proactive with cybersecurity training,” said Dara Warn, CEO of INE Security. “At