How can I help in securing your assets?
Cybersecurity
Reliable protection of your computers, personal gadgets, and networks on the every threat level – from technical to human. Providing your confidentiality on the Internet.
Verification of information
Checking your business partners and competitors with two-factor technique of information-psychological analysis. Assessment of information credibility.
Risk assessment and threat modeling
Acute and high-qualified assessment of your systems’ vulnerabilities on the technical and human level and elaborating strong methods of protection.
Reputation protection
Recovering reputation after information attacks and negative media campaigns. Preventive creation of bulletproof reputation to resist such attacks. Working with public opinion.
“In God I trust, all others I pen-test”
“In God I trust, all others I pen-test”
Testimonials
Sergii has a wonderful mix of talent — both on the tech side and in communications. I very much enjoyed working with Sergii at Comodo. Companies today need his blend of capabilities, although many of them still do not know it. Sergii acted as a mediator between narrow technical specialists and our technically non-educated audience, giving Comodo a great boost in visibility, in blogs, presentations, articles, and quarterly reports that covered a wide range of malware and cybersecurity issues.
Sergii is an excellent technical content writer and presenter. His training videos are clear and presented with patience and willingness to show and help beginners and professionals on their way through difficult Cybersecurity topics.
Sergii Nesterenko has a rare combination of deep knowledge and hands-on experience in various cybersecurity domains and strong influential writing. This special feature is high-demanded nowadays when educating cybersecurity topics and promoting cybersecurity products have become a priority task. His mastery in turning technical cybersecurity topics in engaging articles, blog entries and other kinds of influential writing have enabled effective informing wide audience about Comodo’s team achievements in its struggle against cybercrimes. Sergii’s ability to transform hard-to-understand cybersecurity topics into capturing stories for the wide audience is a wonderful way to deliver value information and win the hearts and minds of the customers.
Add here excellent communication skills to work effectively in the multinational command -- and you’ll understand why I’m sure that Sergii will add a great value to any company that invites him onboard.
It was quite a pleasure for me to work with Sergii A. Nesterenko. As I was responsible for development management of Anti-Spam Lab team, we were contributing to come up with blockbuster blogs and articles to help the world of IT fight against unwanted emails and similar cyber attacks. Sergii is quite professional in gathering requirements, clearing unnecessary artifacts to deliver cutting-edge technical content in the most elegant way in a timely manner. I am sure he will bring success to every bit of work he involves in.
It's been a pleasure working together with Sergii A. Nesterenko as an author for 2 courses on CyberSecurity. He has cutting edge knowledge on Cybersecurity. He is ready to deal with difficult situations and solve the problems on time and take care of the project. He was open to feedback and was capable of adapting to new working environments. Very Positive attitude towards work. Our collaboration on the course has been a real joy for me and Packt. Would love to work with him again in future and create stellar video courses on cybersecurity.
In the realm of cybersecurity, Sergii stands out as a true professional. His adept handling of project management tools and methodologies has been commendable.
His leadership shone through in his ability to foster collaboration and ensure alignment among stakeholders. Sergii is not just a skilled communicator but also a dedicated professional with a hands-on approach.
With a knack for adapting to complex scenarios, Sergii has shown he can rise to any cybersecurity challenge.
Security highlights
that definitely will assist you
Data Security
All your assets are digital data. Just a set of ones and zeros storing on hard drives of personal computers, companies endpoints or in clouds. Unfortunately, they can be destroyed and lost forever at any moment if you have not […]
Digital Forensics
It happens every day to thousands of companies. Data breach, cyber espionage, ransomware, trojans, viruses, worms, insider leakages, whistleblowing – in other words, a kind of attack that brings devastating damage to a company. Those sad cases when bad guys […]
Anti-social engineering
Why Social Engineering is dangerous to you? Imagine, you have harden your network with the most powerful tools possible. You have carefully checked your web applications for vulnerabilities and eliminated all weak points. So now you can breathe out and […]
Advanced Persistent Threat
Why You Should Be Concern about APT There is a special kind of enemy in the cyberspace. High-trained, cunning, well-funded and tenacious attackers united in coordinated teams. If they target your company, you’re in real danger. They will do everything […]
My video courses
HOT NEWS
Threatpost
- Student Loan Breach Exposes 2.5M Records2.5 million people were affected, in a breach that could spell more trouble down the line.Nate Nelson
- Watering Hole Attacks Push ScanBox KeyloggerResearchers uncover a watering hole attack likely carried out by APT TA423, which attempts to plant the ScanBox JavaScript-based reconnaissance tool.Nate Nelson
- Tentacles of ‘0ktapus’ Threat Group Victimize 130 FirmsOver 130 companies tangled in sprawling phishing campaign that spoofed a multi-factor authentication system.Nate Nelson
- Ransomware Attacks are on the RiseLockbit is by far this summer’s most prolific ransomware group, trailed by two offshoots of the Conti group.Nate Nelson
- Cybercriminals Are Selling Access to Chinese Surveillance CamerasTens of thousands of cameras have failed to patch a critical, 11-month-old CVE, leaving thousands of organizations exposed.Nate Nelson
Sophos News
- Sophos Endpoint: Industry-leading protection against remote ransomware attacks 07.12.2023Most leading endpoint solutions struggle to stop malicious remote encryption, but not Sophos.Sally Adam
- Sophos DNS Protection – Join the EAP 04.12.2023Calling all Sophos Firewall users! Join the Early Access Program for our new web protection service.Chris McCormack
- Cybercriminals can’t agree on GPTs 28.11.2023Despite concern over illicit applications of ChatGPT and similar models, Sophos X-Ops’ exploration of cybercrime forums suggests many threat actors are still skeptical – and wrestling with the same issues and problems as the rest of usMatt Wixey
- The Dark Side of AI: Large-Scale Scam Campaigns Made Possible by Generative AI 27.11.2023Generative artificial intelligence technologies such as OpenAI’s ChatGPT and DALL-E have created a great deal of disruption across much of our digital lives. Creating credible text, images and even audio, these AI tools can be used for both good and ill. That includes their application in the cybersecurity space. While Sophos AI has been working […]gallagherseanm