Best Free Cybersecurity Software of 2025

Hoxhunt is a Human Risk Management platform that goes beyond security awareness to drive behavior change and (measurably) lower risk. Hoxhunt combines AI and behavioral science to create individualized micro-training moments users love, so employees learn to detect and report advanced phishing attacks. Security leaders gain outcome-driven metrics to document drastically reduced human cyber risk over time. Hoxhunt works with leading global companies such as Airbus, DocuSign, AES, and Avanade.

EasyDMARC is a cloud-based DMARC solution for securing domains and email infrastructure, protecting organizations against phishing attacks, and more: Brand Protection Our email protection SaaS platform stops hackers from sending phishing emails to customers from company names, gaining access to accounts, and stealing personal information. Increased Email Deliverability EasyDMARC informs receiving mail servers that emails are legitimate and authentic, ensuring they’re delivered to the inbox instead of blocked or sent to spam. Visibility Into Cyber Threats EasyDMARC helps to successfully monitor every aspect of your email authentication and enforce effective protection from phishing attacks thanks to its advanced reporting capability. Business Email Compromise (BEC) Protection Most people have seen emails pretending to be from the CEO, CFO, or another executive in their organization. EasyDMARC prevents business email compromise and keeps your company reputation on the highest level․ EasyDMARC’s deliverability tool, EasySender, covers all the aspects of email deliverability. The variety of features on the platform cover email list verification, mailbox warmup, and inbox placement.

Psono, a self-hosted and open-source password manager, prioritizes keeping your data secure. It encrypts and stores your credentials in a manner accessible only to you, while also offering encrypted access-sharing with your team. Boasting a range of features, Psono facilitates easier data management and password accessibility than ever before. Its multi-level encryption begins with client-side encryption, ensuring genuine end-to-end encryption for password sharing, and is further bolstered by SSL and storage encryption. The complete code is subject to transparent public audit possibilities, underscoring that true security stems from precise encryption rather than the obfuscation of security weaknesses. Opting for a self-hosted credential manager like Psono allows you enhanced access control and eliminates dependency on public services for data storage, asserting itself as one of the most secure password managers that genuinely prioritizes client online safety on user-hosted servers.

Empower Your Team to Achieve Enterprise-Level Cybersecurity An all-in-one cybersecurity solution with SIEM, endpoint visibility, 24/7 monitoring, and automated response to reduce complexity, increase visibility and speed up time to respond. We handle the cybersecurity heavy lifting, so you get time back in your day. With out-of-the-box detections, pre-filtered alerts, and response playbooks, your team can achieve real cybersecurity value with Blumira. Quick Deployment, Immediate Results: Integrates with your tech stack and fully deploy, with no warm-up period, in hours All-You-Can-Eat Data Ingest: Predictable pricing and with unlimited data logging for full-lifecycle detection Compliance Made Easy: 1 year data retention included, pre-built reports, and 24/7 automated monitoring 99.7% CSAT Support: Solution Architects for product support, the Incident Detection and Response Team creating new detections, and 24/7 SecOps support

Criminal IP is a cyber threat intelligence search engine that detects vulnerabilities in personal and corporate cyber assets in real time and allows users to take preemptive actions. Coming from the idea that individuals and businesses would be able to boost their cyber security by obtaining information about accessing IP addresses in advance, Criminal IP's extensive data of over 4.2 billion IP addresses and counting to provide threat-relevant information about malicious IP addresses, malicious links, phishing websites, certificates, industrial control systems, IoTs, servers, CCTVs, etc. Using Criminal IP’s four key features (Asset Search, Domain Search, Exploit Search, and Image Search), you can search for IP risk scores and vulnerabilities related to searched IP addresses and domains, vulnerabilities for each service, and assets that are open to cyber attacks in image forms, in respective order.

Log360 is a SIEM or security analytics solution that helps you combat threats on premises, in the cloud, or in a hybrid environment. It also helps organizations adhere to compliance mandates such as PCI DSS, HIPAA, GDPR and more. You can customize the solution to cater to your unique use cases and protect your sensitive data. With Log360, you can monitor and audit activities that occur in your Active Directory, network devices, employee workstations, file servers, databases, Microsoft 365 environment, cloud services and more. Log360 correlates log data from different devices to detect complex attack patterns and advanced persistent threats. The solution also comes with a machine learning based behavioral analytics that detects user and entity behavior anomalies, and couples them with a risk score. The security analytics are presented in the form of more than 1000 pre-defined, actionable reports. Log forensics can be performed to get to the root cause of a security challenge. The built-in incident management system allows you to automate the remediation response with intelligent workflows and integrations with popular ticketing tools.

Secrets and confidential information should be shared with care. SharePass is the perfect solution for businesses who want to automate secret management and keep it all in one place securely online or on your phone - no matter where you're at. SharePass enables you to send encrypted links from sender to receiver with various settings. The settings include expiration restrictions, availability and IP restrictions which can be set through our patent-pending platform-independent sharing system. With its cutting-edge encryption and security measures, SharePass is committed to keeping your personal information safe. We cannot see what your secrets are, the only people who know are the ones sharing them. In this era of identity theft, SharePass will protect you and prevent your data from leaking to the dark web by eliminating all evidence that it was ever there. SharePass supports single sign-on with Office365, Google Workspace, MFA & integration for Yubikeys so maximum security is guaranteed.

odix, a market leader for Enterprise CDR (Content Disarm and Reconstruction), now offers FileWall, a native cybersecurity app for Microsoft Office 365 mailboxes. FileWall™, which is compatible with Microsoft security solutions like EOP and ATP, ensures complete protection against unknown attacks via email attachments. FileWall™, unlike other Microsoft security solutions, doesn't alter or harm any sender-related security capabilities.

It is very difficult to find data to show people who don’t care about malware. Although people may not be able to provide the exact details, almost everyone is aware that it's a serious threat. FlashStart blocks botnets, ransomware, malware, and other threats using global, top-class protection streams. You can block any web content that you find inappropriate by using content filtering. These sites could be dangerous, distracting, and unsavoury. Pro+ includes a secure, downloadable app. All devices are protected by centralized FlashStart protection at the home-office, cafe, and anywhere else. No router dependency. The idea is to optimize the filter to meet your individual needs. This is not an appliance. It is a lightweight application that runs on the existing IT systems of the end user. It should allow a low latency performance of less than 5ms.

IPQualityScore's suite fraud prevention tools automate quality controls to prevent bots and fake accounts, fraudsters chargebacks & malicious users, without interfering with the user experience. With industry-leading IP reputation data and user validation, you can detect bad actors and block cyber threats. For smoother operations and less headaches, proactive Prevent Fraud™.

Together, we can stop cyber attacks at every stage of the battle, from the enterprise to the endpoint. Cybereason provides high-fidelity convictions and visibility of known and unknown threats, so that defenders can harness the power of true prevention. Cybereason provides deep context and correlations across the entire network to enable threat hunters to detect and deter stealthy operations. Cybereason dramatically reduces the time it takes for defenders investigate and resolve attacks using both automated and guided remediation. Cybereason analyzes over 80 million events per second, which is 100x more than other solutions available. To eliminate emerging threats in minutes, rather than days, reduce investigation time by up to 93%.

Finally, a password manager that is designed for collaboration. Secure, flexible, and ready for automation. Trusted by over 10,000 organizations, including Fortune 500 companies and newspapers as well as governments and military forces. Passbolt servers have been designed to be easy to set up and manage. They are enterprise-ready and can be configured to support high availability. Passbolt is available via your browser or your mobile phone. Real-time sharing is possible. Desktop apps are on the horizon. The JSON API allows you to retrieve, store, and share passwords programmatically. Automate at scale using Passbolt CLI Access logs in real-time. Privacy is part of our DNA, and also in the DNA European laws (to ensure we don't change minds). Passbolt's self-hosted source code is covered by an AGPL license. Yes, even the commercial version. It is free to be audited, contributed to, and redistributed. This is why we have thousands of organizations from all sectors.

Map your cloud identity attack surface and secure it against identity-based attacks. Push is an identity security platform for cloud-first businesses. Push uses a lightweight browser extension to give you real-time visibility of all your employees’ cloud identities and uncover vulnerabilities that can be exploited by identity-based attacks. - Get real-time visibility of all your employees' cloud identities, apps and integrations. - Onboard unmanaged apps to SSO. Detect and harden non-SSO identities. - Find and secure vulnerable identities. Prevent your employees creating new identity vulnerabilities. - Uncover shadow SaaS apps and accounts. Limit SaaS sprawl and reduce supply chain risk. Push supports Google Chrome, Microsoft Edge, Firefox, Safari, Brave and Opera.

Protect your APIs by analyzing and protecting them with passive, inline, or API-based integration with any network component, such as an API gateway, proxy or CDN. Predefined policies that are fine-tuned based on threat patterns, which have been used to protect billions of API transactions every day, provide unmatched protection. An API-based architecture and rich user interface allow integration with threat intelligence feeds and other security components. Patented ML based analysis eliminates JavaScript integration pen-alties like slow page loads, extended development cycles, and forced mobile-app upgrade. ML-based analysis generates a unique Behavioral Footprint to identify malicious intent and continuously tracks attackers as they retool.

Zivver is the digital communications platform that powers the next generation of secure digital communication. It is simple, smart, and secure. Zivver is trusted by more than 5,000 organizations worldwide. It prevents data leaks from human error and ensures compliance. Zivver seamlessly integrates to all major email clients, including Outlook, Gmail, and Microsoft 365. It features unrivalled zero-keys encryption and smart features like contextual machine learning powered business rule generation. Zivver allows you to securely share large files upto 5TB via your existing email client. Zivver is fully in compliance with all major data security standards including ISO 27001 and NTA 7516, GDPR and HIPPA.

Probely is a web security scanner for agile teams. It allows continuous scanning of web applications. It also lets you manage the lifecycle of vulnerabilities found in a clean and intuitive web interface. It also contains simple instructions for fixing the vulnerabilities (including snippets code). Using its full-featured API it can be integrated into development pipelines (SDLC) or continuous integration pipelines, to automate security testing. Probely empowers developers to become more independent. This solves the security team's scaling problem that is often undersized compared to development teams. It provides developers with a tool to make security testing more efficient, which allows security teams to concentrate on more important activities. Probely covers OWASP TOP10, thousands more, and can be used for checking specific PCI-DSS and ISO27001 requirements.

It scans web sites and web apps to identify and analyze security vulnerabilities. Network Scanner identifies and assists in fixing network vulnerabilities. It analyzes the source code to identify and fix security flaws and weak points. This online tool allows you to evaluate your company's compliance with GDPR. Your employees will benefit from this unique learning opportunity and you can avoid the increasing number of phishing attacks. Consulting activity to assist companies with management, control, and risk evaluation.

GitGuardian is a global cybersecurity startup focusing on code security solutions for the DevOps generation. A leader in the market of secrets detection and remediation, its solutions are already used by hundred thousands developers in all industries. GitGuardian helps developers, cloud operation, security and compliance professionals secure software development, define and enforce policies consistently and globally across all their systems. GitGuardian solutions monitor public and private repositories in real-time, detect secrets and alert to allow investigation and quick remediation.

Threatcop is a cyber security tool and simulator that simulates cyber attacks against employees. It also includes awareness modules and gamified assessments. It simulates and imparts personalized awareness based upon top 6 attack vectors, including Vishing, Ransomware and Vishing, SMiShing and Cyber Scam. It provides an overview of individual user awareness and a report on their cybersecurity awareness, called the 'Employee Viability Score (EVS).' The EVS score is used to customize the awareness videos, newsletters, and gamified quiz. This ensures cyber resilience. It provides a complete solution for cyber security awareness among your employees.

At SafeDNS, we are committed to creating a safer and more secure online environment for SMBs, enterprises, ISPs, MSPs, OEMs, and Education. We have a global footprint, making the internet safer for millions of users in over 60 countries. With years of experience in the field of cybersecurity and DNS filtering, we offer cutting-edge solutions to safeguard your digital life. Our innovative technologies help you stay protected against malware, phishing attacks, inappropriate content, and more. SafeDNS currently serves over 4000 institutions and home users around the world.

Cloud admins who value simplicity & reliability, Kloudle is the cloud security automation tool you've been waiting for. With Kloudle, you can scan your cloud accounts from AWS, Google Cloud, Azure, Kubernetes, Digital Ocean, all in one place. Fix Misconfigs without Fear. Never have to worry about making mistakes in fixing security issues When you are faced with fixing security issues, having a knowledgable guide is invaluable. We all know the feeling of dread when we aren't sure if the fix will actually work or make it worse. → Step by step fixes, so you don't have to rely on Google → Pitfalls mentioned, so you understand what can break → Business & Technical Impact to get everyone to be on the same page Are you a developer looking for a reliable & straightforward cloud security scanner? Kloudle is for you. Try it today & experience peace of mind knowing that your cloud infrastructure is secure.

Cloudflare is the foundation of your infrastructure, applications, teams, and software. Cloudflare protects and ensures the reliability and security of your external-facing resources like websites, APIs, applications, and other web services. It protects your internal resources, such as behind-the firewall applications, teams, devices, and devices. It is also your platform to develop globally scalable applications. Your website, APIs, applications, and other channels are key to doing business with customers and suppliers. It is essential that these resources are reliable, secure, and performant as the world shifts online. Cloudflare for Infrastructure provides a complete solution that enables this for everything connected to the Internet. Your internal teams can rely on behind-the-firewall apps and devices to support their work. Remote work is increasing rapidly and is putting a strain on many organizations' VPNs and other hardware solutions.

Wing Security’s SSPM solution has a wide array of features, critical to ensuring the safety and ongoing management of a company’s SaaS usage. Wing Security offers complete access to near real-time threat intelligence alerts, monitoring for sensitive data sharing, mapping of in-house developed SaaS applications and more. Beyond the free version, which provides unmatched visibility, control, and compliance features to protect any organization's defense against contemporary SaaS-related threats, Wing’s complete SSPM solution includes unlimited application discovery, comprehensive risk detection, and automated remediation capabilities. This empowers security professionals to not just have complete oversight of their SaaS usage but also to take immediate action.

Google Cloud is an online service that lets you create everything from simple websites to complex apps for businesses of any size. Customers who are new to the system will receive $300 in credits for testing, deploying, and running workloads. Customers can use up to 25+ products free of charge. Use Google's core data analytics and machine learning. All enterprises can use it. It is secure and fully featured. Use big data to build better products and find answers faster. You can grow from prototypes to production and even to planet-scale without worrying about reliability, capacity or performance. Virtual machines with proven performance/price advantages, to a fully-managed app development platform. High performance, scalable, resilient object storage and databases. Google's private fibre network offers the latest software-defined networking solutions. Fully managed data warehousing and data exploration, Hadoop/Spark and messaging.

Secure instant messaging system that works over local networks and the Internet. Collaboration tools for employee engagement.