Cryptography is one of the main factors that have contributed to the successful securing of the confidentiality of data in the modern era. The Vernam and Vigenère ciphers, which are impenetrable protections which directly emanate from the past, are fine as a base but can be easily broken by a modern cryptanalyst attack. In order to increase its confidentiality, this work proposes an advanced hybrid encryption technique that combines the dynamic Caesar cipher with the secret Vigenère cipher, along with a key position shifting feature. The resistance of our recommended scheme to frequency analysis and bruteforce assaults is improved by the two encryption rounds it uses. We have demonstrated that our proposed approach is a highly robust method that offers data security through the utilization of Shannon entropy to quantify the ciphertext's unpredictability. The strength and applicability of the hybrid cipher for contemporary cryptography applications has been proven by our Python demonstration script.