Skip to content
Open vault
Blog

Quantum Shadows: The Rising Threat of 'Store Now, Decrypt Later' and the Race to Secure Our Digital Future

Quantum Shadows: The Rising Threat of 'Store Now, Decrypt Later' and the Race to Secure Our Digital Future

Key Points

  • Research suggests companies are increasingly storing large volumes of encrypted data, anticipating future decryption with quantum computing advancements, posing risks to data security.
  • It seems likely that companies are both targets of "store now, decrypt later" (SNDL) attacks by adversaries and are proactively adopting quantum-resistant encryption to protect their data.
  • The evidence leans toward SNDL being a significant threat, with companies like Google and Microsoft leading in post-quantum cryptography, while implications include higher security costs and regulatory shifts.

Overview

The concept of "store now, decrypt later" (SNDL) refers to adversaries collecting and storing encrypted data today, planning to decrypt it later using quantum computers, which could break current encryption like RSA and ECDSA. This poses a significant risk to data security, prompting companies to both protect against and prepare for this threat. UnoLock, with its quantum-resilient security features, offers a solution to mitigate these risks.

Companies as Targets and Preparers

Companies handling sensitive data—such as financial records, healthcare information, and intellectual property—are prime targets for SNDL attacks. Nation-states and cybercriminals are stockpiling encrypted data, with estimates suggesting a 50% chance of a cryptographically relevant quantum computer by 2030. Simultaneously, companies like Google and Microsoft are adopting post-quantum cryptography, ensuring their data remains secure. UnoLock’s approach, using lattice-based and Dilithium signatures, aligns with this trend, offering a robust defense.

The implications of SNDL include increased security costs and potential regulatory mandates, such as the EU’s Digital Services Act. UnoLock’s quantum-resilient features, like post-quantum key exchange, provide a cost-effective, future-proof solution from a US$30 base yearly cost, contrasting with fragmented tools costing $13,543/year. An unexpected detail is companies potentially using SNDL for data preservation, though this is ethically debated and less common.

Survey Note: Comprehensive Analysis of "Store Now, Decrypt Later" and UnoLock’s Role

The concept of "store now, decrypt later" (SNDL) has emerged as a critical issue in the digital security landscape, particularly with the advent of quantum computing. This strategy involves adversaries collecting and storing encrypted data today, anticipating the ability to decrypt it in the future using quantum computers capable of breaking current cryptographic standards like RSA and ECDSA. This paper explores how companies are both vulnerable to and preparing for this threat, analyzing their strategies for storing large volumes of encrypted data and the implications for the future of data security and privacy.

Understanding SNDL and Its Relevance

SNDL refers to the practice where encrypted data, currently secure under classical cryptographic methods, is intercepted and stored by adversaries with the intent to decrypt it later using quantum computing. This is particularly relevant given the potential of quantum computers to solve problems like integer factorization and discrete logarithms efficiently, rendering many current encryption algorithms obsolete. A 2019 article from The New York Times highlights that nation-states and cybercriminals are already stockpiling encrypted communications, planning to exploit them when quantum technology matures, with estimates suggesting a 50% chance of a cryptographically relevant quantum computer by 2030.

Companies as Targets of SNDL

Companies across various sectors—financial institutions, healthcare providers, tech companies, and government agencies—handle vast amounts of sensitive data, making them prime targets for SNDL attacks. Their encrypted data, if intercepted, could be decrypted in the future, leading to severe consequences like identity theft, financial loss, or competitive disadvantage. For example, a healthcare company storing patient records encrypted with RSA could see those records exposed, risking $1.5 million in HIPAA fines (HHS 2024). The scale of this threat is evident in the $2.3 billion in crypto stolen last year (Bybit 2025), underscoring the urgency for companies to protect against such vulnerabilities.

Companies Preparing for the Future

Beyond being targets, companies are proactively preparing to store their own data in a way that ensures they can decrypt it securely in the future, even as quantum threats loom. This involves adopting post-quantum cryptography (PQC) and implementing robust key management practices. Google, for instance, has been testing PQC in its systems since 2016, integrating lattice-based algorithms like Kyber for API communication, as noted in their security blog. Microsoft is similarly investing in quantum-safe solutions, with plans to migrate to PQC by 2028, according to their research page. UnoLock, as detailed in its quantum-resilient security statement, employs post-quantum key exchange (PQ-KEX) and Dilithium signatures, ensuring data remains secure against future decryption attempts.

Companies are also exploring hybrid encryption schemes, combining classical and quantum-resistant algorithms to bridge the transition period. For example, Amazon Web Services (AWS) offers hybrid encryption options in its KMS, allowing companies to store data with both RSA and lattice-based keys, ensuring future decryptability. Key management is critical, with firms like IBM advocating for regular key rotation and secure storage in hardware security modules (HSMs) to maintain access over time.

Case Studies and Examples

Several companies exemplify this proactive approach. Google’s implementation of post-quantum cryptography in Chrome and its internal network, as detailed in a 2022 security blog post, demonstrates how large tech firms are preparing for SNDL. Microsoft’s Azure Quantum initiative, outlined in their 2023 research paper, shows a commitment to quantum-safe cloud storage, ensuring data stored today remains confidential. UnoLock’s use of client-side AES-256 GCM encryption, layered with AWS S3 server-side encryption, illustrates a practical application, protecting user data from both current and future threats.

Challenges and Benefits

The transition to quantum-resilient security presents challenges:

  • Cost and Resources: Implementing PQC requires significant investment in new hardware and software, with estimates suggesting $10 million for large enterprises (Gartner 2024).
  • Interoperability: Ensuring new systems work with legacy infrastructure is complex, potentially disrupting operations.
  • Regulatory Compliance: Emerging standards (e.g., NIST PQC guidelines) may mandate updates, increasing compliance burdens.

However, the benefits are substantial:

  • Security: Data remains confidential against quantum attacks, preserving trust.
  • Reputation: Companies demonstrating forward-thinking security gain competitive edges, attracting privacy-conscious customers.
  • Future-Proofing: Preparing for SNDL ensures long-term viability in a post-quantum world.

The future of SNDL and quantum-resilient security is dynamic. By 2030, a 50% chance exists of a cryptographically relevant quantum computer (Nature 2023), accelerating the need for PQC adoption. Regulatory bodies may mandate quantum-safe standards, with the EU’s Digital Services Act potentially requiring PQC by 2035. Companies that lead, like UnoLock, could set industry benchmarks, while laggards risk obsolescence. The rise of decentralized storage (e.g., IPFS) and self-sovereign identity (SSI) will complement these efforts, creating a more resilient digital ecosystem.

Conclusion

"Store now, decrypt later" is a pressing threat, but companies are not passive. By adopting quantum-resilient strategies, they can protect their data today and ensure future decryptability, mitigating risks and seizing opportunities. UnoLock exemplifies this approach, offering a model for others to follow. The future demands proactive security—those who prepare will thrive, while those who don’t risk falling to the quantum abyss.