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Obisec Books Book 1 of the Obisec Trilogy

CODENAME: LIB3RTY

A self-taught hacker finds a classified file. A secret programme can monitor every financial transaction in Britain. Now four outsiders are being hunted for what they know.
A high-tech cyber thriller about financial control, AI, surveillance, corporate espionage, hacking and the systems shaping our future.
by Dimitrios Zacharopoulos, cyber security specialist, digital forensics practitioner and writer.
18+ High-Tech Thriller Suspense Fiction 505 Pages Softcover · A5
Start the Obisec Trilogy with Book 1.

The system does not wait. It recalculates. It adapts. It learns. When the system breathes, are you still in control?

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Why this story matters now

CODENAME: LIB3RTY takes the technology people talk about every day, AI, surveillance, cyber security, centralised finance and digital control, and turns it into a fast, human thriller about trust, loyalty and power.

01 · The file

Zach Reeves finds a classified document hidden on a government server.

02 · The programme

Project Meridian can monitor and control financial transactions at national scale.

03 · The hunt

Four outsiders become targets after uncovering what was never meant to be seen.

Reader fit

You’ll like CODENAME: LIB3RTY if you enjoy

Cyber thrillers with realistic technology.
Government conspiracy and hidden systems.
Stories about AI, surveillance and financial control.
Young hackers taking on powerful institutions.
Black Mirror style ideas grounded in real threats.
A trilogy world built around cyber security and power.
Synopsis

A thriller about the people caught inside the system

A father leaves a laptop on a sleeping boy's desk and walks out the door. He does not say goodbye. He does not explain. He leaves behind a cracked screen, a Linux partition, and a future his son did not choose.

Thirteen years later, Zach Reeves is twenty years old, self-taught, and living in a council flat in Croydon with his night-shift nurse mother. When he stumbles upon a classified document hidden on a government server, he uncovers Project Meridian, a secret programme to monitor and control every financial transaction in Britain.

He cannot fight this alone. He finds Lily, a data science student carrying the weight of her immigrant parents' dreams. Jane, a care leaver from Manchester who has never had a home but has never stopped running. And Steve, the son of a Hungarian intelligence officer, whose discipline hides a loyalty that will be tested to its limit.

Together they wage a war against an enemy with no public name, no public face, and no boundary it will not cross. They are hacked, hunted, and betrayed by someone they trusted. One of them is taken. The others must decide how far they are willing to go to get her back.

But the deeper they dig, the more they discover that the conspiracy is not what it appears. The exposure they fought for may have been part of the plan.

Meet the author

The story behind the story

Watch Dimitrios Zacharopoulos introduce CODENAME: LIB3RTY and explain what inspired the book, the world it builds, and why it matters now.

Read the first book

Start the Obisec Trilogy

Begin with CODENAME: LIB3RTY, then continue deeper into the Obisec world with the next books in the series.

Cover art

Book design and back cover

CODENAME: LIB3RTY front cover Front Cover
CODENAME: LIB3RTY back cover Back Cover
Book details
TitleCODENAME: LIB3RTY
AuthorDimitrios Zacharopoulos
GenreHigh-Tech Cyber Thriller
CategoryFiction, Suspense, Thriller
Pages505
DimensionsA5, 148 × 210 mm
FormatSoftcover and ebook
Age Rating18+

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Content advisory

CODENAME: LIB3RTY is intended for readers aged 18 and over. It contains themes of surveillance, cyber warfare, abduction and psychological tension. It is a work of fiction. All characters, organisations and events are products of the author's imagination.

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