Security that stays on your computer.

Athene Softworks is a team of security researchers. Our antivirus, Agamemnon, watches every program and file in real time, stops modern stealers in the act and checks everything against more than 47 million known threats. Free, open source, and yours to inspect.

See more Get Agamemnon

What we do.

A small team working across many areas of security. These are the things we care about most.

01
Desktop protection
Antivirus that runs on your own machine and keeps threats in a quarantine you control.
02
Private networking
Encrypted DNS that fails closed, so lookups never leak in plain text.
03
Threat research
We study real malware on macOS and Windows and turn it into readable rules.
04
Open source, always
Everything we ship is free software. Read the code and check our work.

Agamemnon New: 4.0 for Windows · 3.1 for Mac

Antivirus that fights back.

Free, open-source protection for macOS and Windows. Agamemnon sees every program the moment it starts, checks every file as it's saved, and stops stealers before they get your passwords, wallets or browser data. No account, no subscription.

Real-time file monitoring
Stops stealers in the act
Self-protection
USB and BadUSB defence
Apple XProtect and Microsoft Defender engines
Paste-command guard
Ransomware shield
Encrypted DNS
Security checkup

47M+known threats checked on your device
~1 sto stop a stealer
7detection engines
0false alarms across 50,000 programs in our tests

See everything it does

macOS

v3.1 · Universal · Apple silicon & Intel · macOS 13+

Your system

First launch: open System Settings › Privacy & Security and click Open Anyway.

Download .dmg Source

Windows

v4.0.0 · x64 · Windows 10 & 11

Your system

The installer sets up the protection service. Approve the one-time UAC prompt. From 4.0 on, Agamemnon updates itself.

Download .exe .msi Source

Synapse

AI that runs on your Mac and PC.

Download open models and run them privately, or use free cloud models from Google and Groq. One native app with web search, image generation, a browser the AI can use, and your files built in.

Download for Mac Download for Windows ARM64 Learn more

macOS 14+ · Apple silicon · Windows 10 & 11 · x64 & ARM64 · Free and open source

Private, on your computerRun open models from Hugging Face with llama.cpp, or MLX on Mac. Nothing leaves your computer.
Free cloud modelsConnect Google AI Studio, Groq or OpenRouter with a free key and see how much of your limit is left.
Picked for your hardwareSynapse checks your memory and graphics card and recommends models that will actually run well.
More than chatWeb search, images, computer use, a built-in browser, projects and websites on localhost.

Our history.

October 2026. Athene Softworks was founded by Mert Yeşil and Miraz Bakış, two friends who wanted security software that is honest about what it does.

Agamemnon began as a research project on macOS and grew into a full antivirus for Mac and Windows. Synapse followed. Today we build both in the open, and we're working on what comes next.