Michael McMahon

Cyber Security Manager at Tesco Mobile

Michael McMahon is a seasoned professional in the field of cyber security and forensic investigation, currently serving as the Cyber Security Manager at Tesco Mobile since September 2023. Prior experience includes roles at BlackBerry as a Senior Threat Research Manager and Threat Research Manager from June 2021 to June 2023, and at JRI America Inc. as CTIA Team Lead and SOC Threat Analyst between July 2018 and April 2021. Michael began a law enforcement career with An Garda Síochána in February 2008, gaining extensive experience as a Garda and serving for five years as a Mobile Forensic Examiner involved in serious crime investigations. Michael holds a Master of Science in Cyber/Computer Forensics and Cybercrime Investigation from University College Dublin and two Bachelor of Engineering degrees in Advanced Manufacturing Technology and Biomedical/Medical Engineering from Munster Technological University.

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Tesco Mobile

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Welcome to Supermarket Mobile This is the place where over 5 million happy customers come to enjoy our award-winning network. Why? We think like a supermarket, so you’ll always get great value, whether that’s on your coverage (we keep you connected across 99% of the UK on 4G); your phone (we give you Clubcard Prices, so you can get the phone you want for less); or your plan (we freeze your basic monthly usage price for the length of your contract when you take out a Clubcard Price deal). We care for human connection and keep our customers at the heart of everything we do. That’s why being helpful is our bread and butter. After all, every little helps. Super speeds, clear connection We share O2’s network, giving you 99% coverage across the UK on 4G – so there'll be no searching for signal. Plus, you can take it to the next level with the roll-out of 5G, meaning an even faster, even more reliable connection. Spend less with Clubcard No other network gives you a Clubcard point for every £1 you spend, so you can save on your monthly phone bill or the cost of your dream phone. And with our exclusive Clubcard Prices, you have the power to instantly lower prices. Putting you in control With our Anytime Upgrade Flex contracts, you decide how long you want to spread the cost of your phone, and you can chop and change your monthly data as often as you like – it’s totally up to you. Our plans are as flexible as our spaghetti. The proof is in the pudding At the 2023 Uswitch Telecoms Awards, we won Best Network for Customer Service, Best Pay Monthly Value for Money (both for the second year in a row) and Best Pay Monthly Network. The experts say we’re the top bananas.


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