The California Consumer Privacy Act (CCPA) emphasizes encryption as a key safeguard for protecting consumer data. If your business encrypts personal data properly, you can avoid lawsuits even if a breach occurs. Here's what you need to know:
Businesses must also conduct risk assessments, document data processing activities, and prepare for cybersecurity audits starting in 2028. Encryption isn't just about compliance - it's about reducing liability and protecting consumer trust.
CCPA Encryption Requirements and Compliance Deadlines Overview
The California Consumer Privacy Act (CCPA) requires businesses to implement "reasonable security procedures and practices" to safeguard consumer data. While the law doesn't prescribe specific measures, companies are expected to tailor their security strategies to their unique needs. Regulators may evaluate these strategies against established frameworks like the Center for Internet Security (CIS) 20 Controls and the NIST Special Publication (SP) 800 series to determine their adequacy.
One key aspect of compliance is strong encryption, which offers businesses a "safe harbor" from penalties in the event of a breach. This protection is critical since breaches involving non-encrypted data can result in consumer claims ranging from $100 to $750 per incident.
Encryption requirements focus on two main scenarios: data at rest (stored data) and data in transit (data moving across networks). Proper encryption in both states not only aligns with CCPA but also helps protect businesses from breach penalties. Let's break down the specific measures for encrypting data at rest, data in transit, and managing encryption keys.
Data at rest refers to information stored on servers, databases, cloud systems, or backup devices. Encrypting this data is crucial for preventing unauthorized access, especially if physical devices are compromised. Steve Touw, Co-founder and CTO at Immuta, explains:
"Encryption is a security strategy. It protects your organization from scenarios like a devastating breach where, if the adversary were to gain access to your servers, the data stored would be of no use to them, unless they have the encryption key."
Encryption for data at rest is typically applied at the storage layer, with the operating system handling decryption when data is accessed. Industry standards, such as the CIS Controls and NIST guidelines, often recommend AES-256 encryption. This standard ensures that without the decryption key, the data remains inaccessible, even if physical access is gained.
Securing data in motion is just as critical as protecting stored data. Data in transit refers to information traveling across networks - whether between a user’s browser and a server, between internal systems, or to third-party providers. Protocols like TLS 1.2 and TLS 1.3 are widely recognized as secure options for encrypting data during transmission. Older protocols, such as SSL and earlier versions of TLS, are outdated and no longer meet security requirements like those outlined in PCI DSS.
TLS works by creating an encrypted, bidirectional tunnel between communicating systems, ensuring data privacy and integrity. This applies to HTTPS for websites, SSH for secure server access, and FTPS for file transfers. A layered security approach, combining TLS with IPsec and robust key exchange mechanisms, adds extra protection. Even if one layer is compromised, others remain in place to secure the data.
Encryption is only as secure as the management of its keys. If someone gains access to the decryption key, they effectively gain access to the data. Key management best practices include:
These practices minimize risks and ensure compliance with CCPA’s transparency requirements, which can be crucial during audits or breach investigations.
In addition to key management, granular access controls provide an extra layer of security. Instead of granting full access to decrypted data, techniques like query-time deidentification (e.g., hashing or nulling specific fields) allow data to remain functional while protecting individual privacy.
Soliman Hatef, Senior Counsel for Privacy at Palo Alto Networks, highlights the importance of encryption for compliance:
"For an organization seeking to limit liability under the CCPA, encrypting covered personal information of California consumers is a very effective way to do so."
Risk assessments play a key role in determining which data processing activities require the strongest protections, such as encryption. These evaluations work alongside encryption practices by identifying where such safeguards are most needed. Under the CCPA, businesses involved in certain high-risk activities must conduct formal risk assessments. These activities include selling personal information, processing sensitive data without clear purposes, training or using ADMT systems, systematic tracking (like via Wi-Fi or video), and automated profiling.
For activities subject to regulation, assessments must document the business purpose, types of data processed, operational details, and how the processing benefits both the business and its customers. It's also essential to assess potential negative impacts and outline the measures - such as encryption or deidentification - used to minimize risks.
Risk assessments for major activities must begin by January 1, 2026. The documentation should include a final decision on whether to proceed with or stop the processing based on a thorough risk-benefit analysis. This process not only ensures compliance but could also help avoid steep fines.
The CCPA outlines 19 categories of sensitive personal information (SPI) that demand extra protection, including encryption. These categories cover government-issued identifiers like Social Security numbers, driver’s licenses, and passport numbers; financial access data such as account logins and credit card details with security codes; precise geolocation data (tracking within about 6,076 feet); and biometric data like fingerprints, facial recognition, and genetic information.
Other sensitive data includes health and medical records, private communications (like emails and text messages unless your business is the recipient), and personal traits such as racial or ethnic origin, religious beliefs, sexual orientation, and union membership. Legal and status-related information, such as immigration status, citizenship, and criminal records, also falls under this category. Starting in 2026, neural data - information derived from EEG readings or brain-computer interface devices - has been added to the list.
"These assessments are not only required under the new CCPA regulations but are valuable because they force organizations to take a hard look at how their data practices align with their business goals and risk tolerance."
To ensure compliance, audit all departments - such as marketing, HR, and finance - to check if data is being used for profiling, tracking, or ADMT training. Create a centralized record of processing activities, flagging any involving sensitive categories. This inventory will help pinpoint where encryption and other safeguards are absolutely necessary. Once sensitive data categories are identified, meticulously document all related processing activities.
The CCPA requires detailed and formal documentation for risk assessments. Each assessment must include the purpose of processing, data categories, operational details, benefits to the business and consumers, potential negative impacts, and the safeguards in place. If there’s a significant change in the processing activity or new risks arise, the assessment must be updated within 45 days.
Executive certification is also required. A senior executive, such as a CEO or Chief Privacy Officer, must sign a statement confirming compliance under penalty of perjury. The first annual submission deadline is April 1, 2028, but businesses must keep risk assessments for at least five years or for the duration of the processing activity, whichever is longer.
Fines for non-compliance can be substantial. In September 2025, Tractor Supply faced a record $1.35 million fine for failing to honor Global Privacy Control signals, mishandling job applicant data, and missing deadlines for vendor contract updates. Similarly, in May 2025, retailer Todd Snyder was fined $345,178 after a malfunction in its cookie preference center went unresolved for 40 days, highlighting that businesses are also accountable for third-party privacy tools.
Cybersecurity audit deadlines vary by revenue size: companies earning over $100 million annually must submit their first audit certification by April 1, 2028; those earning between $50 million and $100 million have until April 1, 2029; and businesses earning less than $50 million have until April 1, 2030. Missing these deadlines or submitting incomplete documentation could lead to fines of up to $2,663 per unintentional violation and $7,988 per intentional violation or those involving minors.
Start by creating a comprehensive inventory of all personal and sensitive data within your organization. This step is crucial - it helps you pinpoint where data is stored, how it moves, and which systems need encryption. Without this clarity, protecting your data effectively is nearly impossible.
For data at rest, apply encryption at the storage level, such as disk or operating system encryption. This ensures the data remains unreadable even in the event of a physical breach. For data in transit, use modern security protocols like TLS 1.2/1.3, HTTPS, SSH, and FTPS to safeguard information as it moves between systems.
"Businesses have greater incentive to deploy encryption where they have not done so already - even for data that organizations have not traditionally encrypted."
- Larry Marks, Senior Manager, BDO
Update vendor contracts to include requirements for encryption, prohibit unauthorized data selling, and ensure vendors assist during cybersecurity audits. A notable example of why this matters: In August 2022, Sephora faced a $1.2 million settlement with the California Attorney General because their service provider agreements didn’t align with CCPA standards. Additionally, train employees who handle consumer data or inquiries on secure data practices. Once encryption protocols are in place, the next critical step is preparing for cybersecurity audits to confirm compliance.
With encryption protocols set up, it’s essential to verify they meet audit standards for ongoing compliance. Businesses with annual revenue exceeding $26.625 million, processing data for over 250,000 California consumers, or managing sensitive data for more than 50,000 individuals must complete annual cybersecurity audits. The deadlines for certification are staggered: April 1, 2028, for companies earning over $100 million; April 1, 2029, for those earning between $50 million and $100 million; and April 1, 2030, for businesses earning under $50 million.
A qualified, independent auditor will assess 18 control areas, including encryption, multi-factor authentication, and vulnerability management. The auditor must rely on evidence like documentation, test results, and interviews - not just management’s assurances. Afterward, an executive must sign an annual certification under penalty of perjury, affirming the audit’s accuracy and completion.
"If a business ever faces litigation or regulatory action related to a security incident, the audit report will provide adverse parties with a roadmap to the business's known security weaknesses."
To prepare, conduct a pre-audit under legal privilege to identify and address any gaps before the formal review. Keep all audit reports and supporting materials for at least five years. Finally, ensure your data inventory is up to date with current encryption practices and document clear remediation plans, including timelines, for any weaknesses uncovered during the audit.
Encryption plays a critical role in achieving safe harbor under the CCPA, protecting businesses from private lawsuits. By securing personal data both at rest (using AES-256) and in transit (with TLS 1.2 or higher), companies can reduce their exposure to statutory damages if a breach occurs. Without encryption, a breach affecting 100,000 individuals could lead to damages ranging from $10 million to $75 million, plus administrative fines of up to $2,663 per unintentional violation and $7,988 for intentional ones.
"Encryption benefits consumers by rendering compromised data unreadable, so that even if encrypted data is disclosed, the risk of harm to an individual... is significantly limited."
- Soliman Hatef, Senior Counsel, Privacy, Palo Alto Networks
The potential financial penalties highlight the importance of maintaining strong, ongoing security practices. Recent enforcement actions by the California Privacy Protection Agency, such as Tractor Supply's $1.35 million fine in September 2025 and American Honda Motor Co.'s $632,500 settlement in March 2025, underscore the increasing focus on compliance. Regular penetration testing and updated vendor contracts are essential in keeping security measures effective.
Treat encryption and compliance as core business priorities. Staying ahead means maintaining accurate data inventories, conducting annual risk assessments, and preparing for cybersecurity audits. With mandatory audit deadlines starting in 2028 and new requirements like honoring Global Privacy Control signals, businesses must adapt proactively. By embedding these practices into daily operations, organizations can better align with CCPA standards while building trust with consumers.
Under the CCPA's safe harbor provisions, data qualifies as "encrypted" when it is secured using encryption methods that render it unreadable without the proper decryption key. This layer of protection can help shield businesses from liability if a data breach occurs, as encrypted data is far less accessible to unauthorized parties.
The CCPA advises encrypting personal data to improve security and mitigate risks in the event of a breach. While encrypting all data is a smart move, the law places particular importance on safeguarding sensitive data - information that either directly identifies or can be linked to an individual. Prioritizing the protection of this sensitive data is key to staying compliant.
Mistakes in handling encryption keys can create compliance risks. Common missteps include not securely generating, storing, rotating, or revoking keys. These oversights may lead to unauthorized access and breaches of data protection rules, such as those outlined in the CCPA.
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