Before Encryption, There Was Ink-cryption: India’s 5,000-Year Cybersecurity Legacy
COMMUNITYACTIVISMEDUCATIONREVIEW
Vansh Sharma
3/18/20255 min read
You are being watched—not by others, but by the watch you placed upon yourself.
-Vansh Sharma
From Scrolls to Cyberspace—A Timeline of Secret-Keeping
In an age when your Google search history is better safeguarded than your real identity, it’s natural to believe cybersecurity is a modern concern. But let’s travel back a few centuries. Kings, spies, and academics in ancient India were dealing with their own forms of hacking, phishing, and data breaches—except their “data” was written on palm leaves, and their “hackers” were enemy spies rather than hoodie-covered keyboard warriors.
Let’s break down the growth of secrecy and security in ancient India, which, shockingly, set the framework for modern encryption, intelligence, and yes—even cybersecurity. The use of secret codes and ciphers to protect sensitive information extends back to ancient Indian scriptures such as the Arthashastra, where strategies for secure communication were discussed. These early tactics opened the path for the creation of encryption technologies being used today in cybersecurity.
3200 BCE—The Dawn of Encrypted Communication
Before WhatsApp launched end-to-end encryption in 2016, Indian culture had already worked out how to secure communications. The Harappans used pictographic seals—a basic encryption method—to send financial and diplomatic information. Some academics think these symbols were designed to be understood exclusively by those who knew their secret importance. Essentially, the earliest private chatrooms were constructed of stone!


400 BCE – Kautilya’s Arthashastra & The Original Cyber Playbook
Move over Sun Tzu, for Kautilya (Chanakya) had already authored ‘The Arthashastra,’ an intelligence thesis that instructed Indian monarchs how to secure secrets. Some highlights:
Steganography: Messages were buried in hair plaits, embroidered onto clothes, or written using invisible ink (derived from plant extracts). Basically, they had their own kind of vanishing Snapchat messages.
Secret Service & Counterintelligence: Spies, known as Guhas, employed disguise and psychological techniques to obtain and secret information. Imagine an AI-powered lie detector—but in human form! That was the Guhas' specialty.
Code Language: Royal communications were frequently written in a secret script, unreadable without a decryption key. If only ancient rulers had two-factor authentication.
500 CE – Temples of Cryptography
The legendary Kama Sutra (yeah, you read it correctly) wasn’t just about romance—it also recorded cryptographic methods! It explains techniques to communicate hidden messages, such as utilizing various inks (milk that becomes visible when heated) or putting secrets in code.
Meanwhile, in South India, temples were created with audio encryption—certain features would repeat messages in ways only expert listeners could interpret. Imagine having a voice-activated password, except it’s a whole temple instead of Siri.


1000 CE—The Ciphered Letters of Kings
By the period of the Rajput and Chola empires, secret communication had stepped up. Messages were masked using:
Coded poetry: Imagine Shakespeare writing in code—some letters in a poem would spell out secret meanings when read in a specific manner. The Rajput and Chola empires utilized coded poetry as a form of secret communication, where secret messages were hidden within poems by reading specific letters in a particular manner. This method allowed for secure transmission of information during this time period.
Animal couriers: Pigeons conveying hidden messages? That’s practically the medieval equivalent of an encrypted email. During the medieval period, animal couriers such as pigeons were used to transport hidden messages securely. This method of undercover communication was essential for ensuring the safety and confidentiality of sensitive information.
Tamper-proof seals: If a royal seal was broken before reaching its destination, the reciever knew someone attempted to “hack” the message. Tamper-proof seals were crucial for detecting any unauthorized access to important messages, serving as a medieval form of security breach detection. This method helped ensure the integrity and confidentiality of communication between parties.


1500s—Mughal Spy Network & Secret Communication
The Mughals didn’t play when it came to cybersecurity (or empire-building). Akbar had an elite intelligence system where couriers conveyed secret communications hidden in beads, wax, and even fruit peels. Some were written in lemon juice, only visible when placed over a candle flame. That’s some next-level data encryption.
Meanwhile, Raja Raja Chola and other southern rulers developed floating code scripts—messages written in water-soluble ink that would dissolve if tampered with. The greatest self-destructing email of its day!
The Cryptography Around the Globe
1467—The Birth of the Caesar Cipher
In Ancient Italy, Julius Caesar is credited with inventing one of the oldest known encryption systems. The Caesar Cipher involves displacing each letter of the alphabet by a specified number of spaces. This simple but successful system enabled Caesar to communicate securely with his generals and officials, maintaining the secrecy of military plans and tactics.
1795—The Enigma Machine Revolutionizes Cryptography
During World War II, the German military deployed the Enigma system to encrypt its communications. This electromechanical system jumbled signals using a sequence of rotors, making it extremely hard for hostile troops to interpret gathered transmissions. The cracking of the Enigma code by British cryptographers at Bletchley Park played a significant part in the Allied triumph, highlighting the relevance of encryption in combat and national security.
1900s—The Freedom Fighters’ Cryptographic Genius
Fast forward to British India, when rebels like Subhas Chandra Bose and Bhagat Singh employed secret radio codes, invisible ink, and Vedic math-based encryption to share communications without the British catching on. Bose’s undercover transmissions from Germany and Japan were coded in a manner that required days to decipher. Basically, they were operating their own Tor network before the dark web ever existed in 1999. Their use of superior encryption methods enabled them to communicate safely and efficiently coordinate their operations against the British. This shows how cryptography has been exploited throughout history by people struggling for freedom and independence.
Present Day—How Ancient Cybersecurity Shaped the Digital World
Many of these approaches form the backbone of current cybersecurity:
Steganography: Now used to embed info in pictures & files.
Ciphers & Secret Scripts: The foundation of modern cryptographic encryption.
Decoy Strategies: Fake news, disinformation warfare, and honeypot traps in cybersecurity are modern variants of classic counterintelligence.
Tamper-proof communication: Blockchain and digital signatures trace their roots to old-world sealing procedures.
So, next time you encrypt your WiFi with a 16-character password, remember: ancient Indians were already doing something similar, except with silk scrolls and coded poetry instead of routers.
Were Ancient Indians the Original Hackers?
From coded poetry to a temple's audio encryption, ancient Indian intelligence was effectively operating on 5,000-year-old cybersecurity understanding. The next time someone tells you cybersecurity is a present-day innovation, simply smile and respond, “Yeah, and WhatsApp is the first messenger service ever.”
As history indicates, no matter how complex technology develops, the necessity to preserve information remains ageless. The only difference? Today, we utilize AI and encryption instead of secret ink and pigeons. And maybe, just maybe, one day we’ll see cybersecurity pros switching their computers for coded palm leaves.
Wouldn’t that be a plot twist?
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Cybersecurity is as ancient as civilization itself—spread the word before history is hacked!
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