Why DeepCalls exists
DeepCalls was founded to test how organisations handle security at the moment the phone rings.
From innovative approach to measurable results
The story behind DeepCalls
DeepCalls was founded by cybersecurity specialist Lara Hemstede, who brings more than ten years of experience in information security. As a social engineer, consultant and speaker, she carries out assessments and engagements for diverse and complex sectors, from multinationals and banks to municipalities, ministries and healthcare institutions.
Lara specialises in Account Takeover (ATO), uncovering confidential data and getting critical information changed, such as bank account numbers.
DeepCalls GmbH is a Swiss company with a Dutch founder, based in Altendorf. We carry out assessments for organisations in the Netherlands and worldwide.
Her innovative approach and entrepreneurial journey in cybersecurity were recognised and documented in the book 'Security Innovation Stories', a publication featuring innovators in the Dutch security sector.
Lara is able to set up realistic and credible social engineering scenarios and carry them out in a convincing and professional manner.
Joyce de Jong
Director, Audittrail
What actually becomes visible
Organisations increasingly secure their systems with multi-factor authentication and strict protocols. Yet procedures can yield to a plausible story over the phone.
Can a malicious caller take over an account, obtain confidential data or change crucial information such as bank account numbers using only a credible story and the right tone? Only a practical assessment can reliably answer that question.
DeepCalls uses authorised phone scenarios to test how employees respond in the moment, exposing the difference between documented procedures and daily practice.
What does it deliver for you?
A DeepCalls assessment goes beyond simply exposing risks. It gives your organisation a solid basis for targeted strengthening:
Insight & measurable results: See clearly where real risks lie in the identification and verification processes of your critical departments.
Lasting awareness: Employees experience subtle social engineering in practice, leading to lasting behavioural change and vigilance.
Concrete improvements: We pinpoint where internal processes and protocols need tightening.
Technical optimisation: Receive advice on the latest technical measures to enforce reliable verification over the phone.
Realistic scenarios
Tailored simulations based on current risks to test your organisation’s resilience.
Human behaviour
Insight into how professional reflexes and the right tone on the phone can unconsciously cause staff to deviate from established processes.
Ethical boundaries
Conducted under strict rules of engagement, in full confidence and without operational disruption.
Lara Hemstede
Founder of DeepCalls
Lara Hemstede is personally involved in every engagement, from scenario development to final presentation. With more than ten years of experience in cybersecurity, as a social engineer, consultant, speaker and trainer, she focuses on one specific question: what does a person do when a malicious actor calls with the right story, at the right moment, in the right tone?
DeepCalls works for a wide range of organisations, from international enterprises and financial institutions to municipalities and housing associations. Organisations that take security seriously.
LinkedInClients
- International enterprises
- Financial institutions & insurers
- Banks
- Municipalities
- Ministries
- Water authorities
- Healthcare institutions
- Housing associations
- Law firms
- Universities
- Police & safety regions
Scalable simulations
For organisations that need large-scale, multilingual, or international simulations, DeepCalls also offers AI-driven vishing scenarios.
More about AI simulationsCurious how resilient your organisation is?
Schedule an introductory call and discuss which assessment fits your risk profile.
I would like to know more