Callstrike

Real-Time Voice Conversion for High-Stakes Social Engineering Simulations

Human-in-the-Loop Voice Impersonation

When precision matters, AI alone is not enough. Our human-in-the-loop voice phishing capability allows trained operators to conduct phone calls while sounding exactly like your CEO, CFO, or any executive. The human intelligence guides the conversation while our technology transforms their voice in real-time.

See It in Action
Callstrike Human-in-the-Loop Voice Phishing dashboard

When Voice Bots Aren't Enough

High-value targets demand precision. C-suite executives, board members, and key finance personnel have nuanced communication patterns. They ask unexpected questions. They notice when something feels off. Pure AI can't adapt in real-time.
That's where your team comes in. Your operators guide each conversation while our technology transforms their voice in real-time, combining human adaptability with flawless voice impersonation.

How It Works

Your red team speaks into a microphone. Your CEO's voice comes out the other end. Here's how

Configure campaign - attack templates

STEP 1

Clone the Target Voice

Provide just 30 seconds of audio from the person you want to impersonate. Our Voice Sniper Chrome extension can extract clean audio from YouTube videos, podcasts, or company presentations.

Launch attacks - phone call

STEP 2

Operator Preparation

Our AI bots call your employees simultaneously, engaging Your red team operator reviews the target profile, relationship dynamics, and scenario objectives. They prepare for potential questions and objections.in natural conversations designed to extract credentials, sensitive information, or trigger unauthorized actions.

Analyze results - call analysis

STEP 3

Real-Time Call Execution

The operator speaks naturally into their microphone. Our cloud-based voice conversion transforms their speech into the cloned voice instantly, with no perceptible delay.

Deploy training - members selected

STEP 4

Document and Report

Every call is recorded with full transcription. Generate detailed reports showing exactly how the target responded and what information was compromised.

Why Human-in-the-Loop Wins

When the stakes are highest, human intelligence paired with AI voice technology creates attack simulations that no automated system can match.

Adaptive Conversations

Human operators can pivot instantly based on target responses, handle unexpected questions, and exploit emotional cues that AI would miss.

Zero Latency

Our cloud-based processing delivers real-time voice conversion with imperceptible delay, enabling natural conversation flow.

Browser-Based Operation

No expensive GPUs or specialized hardware required. Operators conduct sophisticated attacks using only a web browser.

Executive-Level Realism

Test scenarios that only make sense at the executive level: urgent wire transfers, M&A confidential requests, board-level communications.

Designed for High-Stakes Testing

Purpose-built for the scenarios where a failed social engineering test could mean a real breach — board-level targets, wire transfers, and crisis response.

Red Team Exercises

Conduct realistic adversary simulations targeting your most critical personnel with attacks that mirror real-world threat actor capabilities.

Executive Security Assessment

Test whether your C-suite and board members can detect sophisticated impersonation attempts targeting sensitive decisions.

Wire Transfer Security

Validate that finance teams follow proper verification protocols when receiving urgent payment requests from executives.

Crisis Simulations

Test organizational response when attackers impersonate leadership during high-pressure scenarios.

Frequently asked questions

AI voice phishing uses automated bots for scalable testing across many employees. Human-in-the-loop is for high-stakes scenarios where a trained operator controls the conversation while our technology transforms their voice in real-time. It's ideal for targeting executives or testing critical processes like wire transfers.

Just 30 seconds of clear audio. Our Voice Sniper Chrome extension can extract clean audio from YouTube videos, podcast appearances, earnings calls, or conference presentations where your target executives have spoken publicly.

No perceptible delay. Our cloud-based processing transforms voice in real-time, enabling natural conversation flow. The operator and target can have a normal back-and-forth conversation without awkward pauses.

Both options are available. Your internal red team can operate calls using our platform, or we can provide trained operators for managed engagements. Many organizations start with managed engagements, then transition to self-service as they build internal capabilities.

Just a web browser and a standard microphone. All voice processing happens in our cloud - no expensive GPUs, specialized software, or technical setup required. Operators can work from anywhere with an internet connection.

The converted voice sounds natural on the target's end and in any recordings they might make. However, we record every call on our platform for your documentation and analysis, including the operator's original voice and the converted output.

This capability excels in scenarios requiring adaptive conversation: CEO fraud calls to finance teams, board member requests for confidential information, urgent M&A-related requests, or any situation where the target might ask unexpected questions that would trip up an AI system.

Ready for Executive-Level Attack Simulation?

Our human-in-the-loop capability represents the cutting edge of social engineering testing. Test your defenses against the attacks your adversaries are already planning.