Cybersecurity threats evolve from credential theft to quantum decryption risks

Cybersecurity experts are highlighting evolving threats to corporate environments, focusing on both immediate operational vulnerabilities and long-term cryptographic risks.

Modern corporate attacks often bypass technical flaws by exploiting operational weaknesses in platforms like Microsoft 365. According to the Verizon Data Breach Investigations Report 2025, compromised credentials remain the primary initial access vector globally. Attackers frequently use stolen credentials, legacy protocols like IMAP and SMTP, and gaps in multi-factor authentication (MFA) to enter systems through the “front door.” Techniques such as “Living off the Land” (LotL) allow criminals to use native Windows tools to avoid detection by standard antivirus software.

Simultaneously, a long-term threat known as “Harvest Now, Decrypt Later” is emerging. Criminal organizations are intercepting and storing encrypted data today with the intention of decrypting it once quantum computing technology becomes sufficiently advanced. This poses a significant risk to industries requiring long-term data secrecy, such as finance and telecommunications. Experts recommend transitioning to Post-Quantum Cryptography (PQC) through structured governance, architectural agility, and rigorous asset inventory.