Hottest cybersecurity open-source tools of the month: November 2025
This month’s roundup features exceptional open-source cybersecurity tools that are gaining attention for strengthening security across various environments. Heisenberg: …
Your critical infrastructure is running out of time
Cyber attackers often succeed not because they are inventive, but because the systems they target are old. A new report by Cisco shows how unsupported technology inside …
The identity mess your customers feel before you do
Customer identity has become one of the most brittle parts of the enterprise security stack. Teams know authentication matters, but organizations keep using methods that …
Criminal networks industrialize payment fraud operations
Fraud operations are expanding faster than payment defenses can adjust. Criminal groups function like coordinated businesses that develop tools, automate tasks, and scale …
Gainsight breach: Salesforce details attack window, issues investigation guidance
The number of Salesforce customers affected by the recent compromise of Gainsight-published applications is yet to be publicly confirmed, but Salesforce released indicators of …
New “HashJack” attack can hijack AI browsers and assistants
Security researchers at Cato Networks have uncovered a new indirect prompt injection technique that can force popular AI browsers and assistants to deliver phishing links or …
Heineken CISO champions a new risk mindset to unlock innovation
In this Help Net Security interview, Marina Marceta, CISO at Heineken, discusses what it takes for CISOs to be seen as business-aligned leaders rather than technical …
Small language models step into the fight against phishing sites
Phishing sites keep rising, and security teams are searching for ways to sort suspicious pages at speed. A recent study explores whether small language models (SLMs) can scan …
Black Friday 2025 for InfoSec: How to spot real value and avoid the noise
Your inbox is probably drowning in Black Friday emails right now. Another “limited time offer” that’ll reappear next month, countdown timer creating …
DeepTeam: Open-source LLM red teaming framework
Security teams are pushing large language models into products faster than they can test them, which makes any new red teaming method worth paying attention to. DeepTeam is an …
How board members think about cyber risk and what CISOs should tell them
In this Help Net Security video, Jonathan Trull, EVP & CISO at Qualys, discusses which cybersecurity metrics matter most to a board of directors. Drawing on more than two …
Popular code formatting sites are exposing credentials and other secrets
Widely used code formatting sites JSONFormatter and CodeBeautify are exposing sensitive credentials, API keys, private keys, configuration files and other secrets, watchTowr …
Featured news
Resources
Don't miss
- Rakuten Viber CISO/CTO on balancing encryption, abuse prevention, and platform resilience
- Turning cyber metrics into decisions leaders can act on
- Teaching cybersecurity by letting students break things
- There was no data breach, Instagram says
- Crypto crime hits record levels as state actors move billions