Black Box Attack
'Black Box' is a cash jackpotting attack on ATMs, executed with the help of an unauthorized device connected to the ATM.

Shashank Shekhar has over 15 years of experience in various industries, including copper, automobile, manufacturing and textiles. He is a Chartered Accountant and Company Secretary by qualification, with hands-on experience in financial reporting, internal financial controls, auditing, handling audits, managing treasury and other areas. He has specialized in secretarial functions along with legal and consulting work.
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S Gopalakrishnan has around 30 years’ of experience in various industries including Cement, Float Glass, Pharma, Energy, & Mining. He is a Chartered Accountant and Cost Accountant by qualification, having hands on experience in setting up Start-ups & MSME companies, setting up renewable energy infrastructure, finalizing sales agreements, M&A, & setting up processes and controls. He has specialized in arrangement of fund, both debt and equity, enterprise relationship, & investor management.
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G. Vanjinathan in his present role as Senior Vice President of Customer Support Services, is responsible for Domestic and International support services, Profit & Loss, and Service Level Agreement of his business.
He has more than 25 years of experience in Heading customer service operations, Project Management, Customer Relationship Management, SLA, Technical Support and Global pre and post-sale support, in the ATM industry. Before joining Vortex, he worked with Diebold Systems and Cashlink Global Systems.
He received a B.E. degree in Electronics and Communications Engineering from the Vellore Institute of Technology.
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Manoj has more than 25 years of experience in leading engineering teams and developing products ranging from ATM/self service, Office Automation products and Tooling for manufacturing industries. Prior to joining Vortex Engineering he had worked with HCL Technologies and TVS Electronics. During his association with NTTF industries, a commercial Tool Room, he worked on Design of Precision Plastic Injection moulds, Press tools, Jigs & Fixtures for Automotive and Engineering products. Manoj received his BTech in Mechanical Engineering from BITS Pilani.
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Kiran completed his Bachelor's in Engineering at Bharath University. He has 14+ years' of experience in multiple domains in the software development Industry. He joined as 'Engineering Software Manager' in the Software Product Development business unit at Vortex. Currently, he serves as ‘General Manager’ in the same business unit. Prior to joining Vortex Engineering, he had worked with ThinksynQ Solutions and S10 Healthcare.
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M.A. SENTHIL KUMAR is an engineering professional with 20 + years of experience in Production Management and Process Improvement. He has a proven track record of Production Process Management, Quality Control, streamlining workflow and creating an environment to increase the productivity. Prior to Vortex, he had worked with R.Stahl Pvt Ltd, Gunnebo India and Eveready Industries.
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Divya Nandwana is an accomplished professional with a strong foundation in technology and extensive experience in management consulting and strategic leadership.
She holds a Bachelor of Technology degree from Indian Institute of Technology (IIT) Guwahati, where she developed a keen analytical mindset and a passion for innovative problem-solving. She has also done an Executive Leadership Programme from Stanford Graduate School of Business.
Divya gained international experience at Taiyo Pacific Partners LLP in Kirkland, Washington, USA. This opportunity allowed her to expand her understanding of global business practices and investment management strategies. Prior to joining Vakrangee, she has worked at KPMG India in the consulting division. Over her two-year tenure, she became an integral part of the Management Consulting, Strategy, and Operations team.
In July 2016, she joined Vakrangee wherein she initially headed the ATM Business Vertical. As she advanced in her role, she also took on the responsibility as Head of Technology, where she spearheaded the integration of advanced technology solutions to drive digital transformation across the organization.
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Director
Hari Chand Mittal holds a Master of Commerce degree and is a certified associate of the Indian Institute of Bankers. With a distinguished banking career spanning over 37 years at Union Bank of India, he occupied several leadership roles. His tenure culminated in the position of Field General Manager overseeing the Mumbai and Maharashtra regions under the Pune Zone, from which he retired on 31 July 2019.
Mr. Mittal possesses extensive experience in diverse areas of banking administration, encompassing a strong foundation in operations and finance. His expertise extends across MSME, Retail, Agriculture, Foreign Exchange, Import/Export, and Financial Inclusion. In addition to his banking responsibilities, he demonstrated proficiency as an administrator, mentor, and team leader. His career is marked by contributions as a motivational speaker, evaluator, and crisis manager.
Further to his professional accomplishments, Mr Mittal was appointed as an Independent Director on the Board of Chandigarh Smart City Ltd. This appointment was made by the Advisor to the Administrator, Union Territory, Chandigarh-cum-Chairman CSCL, as per notification No 15157-FII(9)-2020/15529 dated 10.12.2020, issued by the Principal Secretary/Home-cum-Local Govt, Chandigarh Administration, Local Govt Department, Union Territory, Chandigarh.
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Director
Dr. Nishikant Hayatnagarkar is a distinguished technologist and a pioneer in the field of computer science, holding a Doctorate in Computer Science from the prestigious Indian Institute of Technology (IIT), Powai, Mumbai. With a rich career spanning over three decades, he has been a key figure at Vakrangee Limited since 1994, where he has led the Research & Development division with visionary leadership. Dr. Hayatnagarkar is renowned for his groundbreaking work in microchip design and has made significant contributions to the development of advanced technological solutions. Among his notable innovations is a highly sophisticated voice recognition system that has been successfully implemented across various sectors, including Tele Banking and Tele Gas Booking, revolutionizing user interactions with technology.
In addition to his work in voice recognition, Dr. Hayatnagarkar has also excelled in the creation of multilingual technologies. He designed and developed a Multilingual Keyboard, a tool that has enhanced digital communication by bridging language barriers. His expertise in this domain has also led him to collaborate with Media Labs Asia – Kamal Rekhi School for Information Technology (IIT Mumbai), where he serves as a consultant. In this role, he has played a pivotal part in the development of the Marathi language Keyboard (Key-Lekh) and the E-Lekh, a tablet-based Marathi language input system, driving forward the digital inclusion of regional languages in the technology landscape. Dr. Hayatnagarkar's contributions have not only elevated Vakrangee Limited's technological capabilities but have also had a profound impact on the broader tech industry, particularly in the areas of language technology and human-computer interaction. His work continues to inspire innovation and set new benchmarks in the industry.
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Shashank Shekhar has over 15 years of experience in various industries, including copper, automobile, manufacturing and textiles. He is a Chartered Accountant and Company Secretary by qualification, with hands-on experience in financial reporting, internal financial controls, auditing, handling audits, managing treasury and other areas. He has specialized in secretarial functions along with legal and consulting work.
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S. Gopalakrishnan is a Chartered Accountant cum Cost Accountant and has 30 years of experience in Accounting, Treasury, Fund raising - both debt and equity, working capital management, and operational finance. Prior to joining Vortex in 2016, he was Finance Head managing finance and operation functions of US geography of a mining company. Prior to this, he had worked in Companies like OPG Group, TTK Group, Saint Gobain Glass India Pvt Ltd., and He has specialized in setting up financial systems and procedures for Starts ups, working capital management, term debt funding and equity funding from PEs
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