Data Loss Prevention

Organisations depend on information to serve customers, manage employees, develop products, work with partners, and make important business decisions. This information may include personal data, financial records, contracts, intellectual property, technical documentation, business plans, and other confidential material.

Data can be lost or exposed in many ways. An employee may send a document to the wrong recipient, upload sensitive information to an unapproved service, use a personal device for work, or share a file with broader access than intended. Information may also be taken deliberately, accessed through a compromised account, or transferred outside the organisation without authorisation.

Data Loss Prevention helps you identify sensitive information and reduce the risk of it being disclosed, transferred, or used inappropriately. At CA, we help organisations build practical DLP programmes that protect important data without creating unnecessary barriers for employees.

Why This Matters

Not every data loss incident is the result of a sophisticated cyberattack. Many incidents begin with a routine action such as sending an email, sharing a document, copying information to a removable device, or uploading a file to a cloud platform.
The difficulty is that legitimate business activity and risky behaviour can sometimes look very similar. Employees need to exchange information to perform their work, but the organisation must also recognise when sensitive data is being shared inappropriately or moved to an unapproved location.
Without a clear DLP approach, organisations may introduce controls that are too weak to prevent data loss or too restrictive to support normal business processes.

Effective Data Loss Prevention helps you:

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Protect sensitive information

Identify and protect personal, financial, commercial, technical, regulated, and business-critical data.

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Reduce accidental disclosure

Prevent common mistakes such as sending information to the wrong recipient, sharing files too widely, or uploading data to unauthorised services.

🛡️

Detect suspicious activity

Recognise unusual access, copying, downloading, printing, or transmission of sensitive information.

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Support regulatory compliance

Apply appropriate controls to information covered by contractual, legal, regulatory, or industry requirements.

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Enable secure ways of working

Allow employees to use email, cloud services, collaboration platforms, and mobile devices while maintaining appropriate protection.

Our Approach

We develop DLP programmes around the information your organisation needs to protect and the way employees actually work.
Our goal is not to block every transfer or create unnecessary warnings. We focus on applying proportionate controls that reduce risk while allowing legitimate business activity to continue.

Understand your information and business processes

We begin by identifying the information that is most important to your organisation. This may include personal data, customer records, employee information, payment details, contracts, intellectual property, strategic documents, source code, or confidential communications.
We also examine how this information is used. Where is it created and stored? Who needs access to it? How is it shared internally and externally? Which systems, devices, applications, and third parties are involved?
Understanding normal information flows is essential. A control that appears reasonable from a technical perspective may disrupt an important process if it does not reflect how employees, customers, and suppliers work in practice.

Identify data loss risks and exposure points

We assess where sensitive information may be exposed through email, collaboration platforms, cloud storage, business applications, web uploads, removable media, printing, endpoint devices, or external sharing.
We consider both accidental and deliberate actions. This includes human error, inappropriate access, compromised accounts, unauthorised applications, excessive downloads, employee departures, and attempts to avoid existing security controls.
We also review previous incidents, alerts, exceptions, and near misses. These can provide valuable insight into where information is handled inconsistently or where existing controls may not be working as intended.
The findings help identify the most significant data loss scenarios and establish clear priorities for improvement.

Define practical DLP policies and controls

We help develop DLP policies based on the sensitivity of the information, the business context, the user’s role, the destination, and the method of transfer.
Different situations may require different responses. A low-risk action may only require a reminder, while the external transfer of highly confidential information may need to be blocked, approved, encrypted, or escalated for review.
Controls may include:
- Warning employees before sensitive information is shared
- Requiring a business justification for certain actions
- Restricting transfers to personal email accounts or unapproved services
- Blocking specific types of sensitive data from leaving the organisation
- Applying encryption or other protection automatically
- Limiting the use of removable storage devices
- Monitoring unusual downloads or high-volume data transfers
- Managing exceptions through a documented approval process
We help ensure that policies are specific enough to protect information but flexible enough to support legitimate business requirements.

Test and introduce controls gradually

DLP controls should not be introduced across the organisation without first understanding their likely impact.
We recommend beginning with monitoring and testing. This allows the organisation to observe information flows, identify false positives, understand common employee activities, and refine policies before stronger restrictions are applied.
Controls can then be introduced gradually, starting with the highest-risk information, users, systems, or business processes.
This phased approach reduces disruption and gives employees time to understand new requirements. It also allows security, privacy, compliance, legal, human resources, and operational teams to agree on responsibilities and escalation procedures.

Respond to alerts and suspected data loss

Technology can generate alerts, but the organisation still needs a consistent process for deciding what those alerts mean and how they should be handled.
We help establish procedures for reviewing alerts, gathering relevant context, assessing severity, documenting decisions, and escalating suspected incidents.
An alert may reflect an innocent mistake, an approved business activity, a poorly designed control, or a deliberate attempt to remove information. The response should be proportionate and based on reliable evidence.
We also help define the roles of security, privacy, legal, compliance, human resources, management, and other relevant teams. This is particularly important when an investigation involves employee activity or confidential personal information.

Monitor, review, and improve the programme

Data loss risks change over time. Organisations introduce new systems, adopt cloud platforms, change suppliers, expand remote working, and use information in new ways.
We help establish reporting, review schedules, performance measures, policy ownership, and processes for managing exceptions.
This may include monitoring the number and type of DLP alerts, identifying repeated risky behaviour, measuring false positives, reviewing unresolved exceptions, and assessing whether employees understand the controls.
Regular reviews help ensure that DLP policies remain effective, proportionate, and aligned with the organisation’s business priorities.

What Sets CA Apart

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Business-focused protection

We begin with the information and business processes that matter most, rather than applying the same controls to every file and employee.

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Practical and proportionate policies

We balance protection with productivity, helping reduce risk without unnecessarily interrupting legitimate work.

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Clear connection to data classification

We align DLP controls with the organisation’s data discovery and classification approach so that protection reflects the sensitivity and value of the information.

⚖️

Consideration of people and processes

Technology is only one part of Data Loss Prevention. We also address responsibilities, employee guidance, investigation procedures, exceptions, and management oversight.

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Phased implementation

We introduce monitoring and controls gradually, allowing policies to be tested and refined before stronger restrictions are applied.

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Independent advice

Our recommendations reflect your information, working practices, technology environment, and risk profile. They are not based on promoting a particular platform or product.

The Business Value

Data Loss Prevention with CA gives your organisation greater control over how sensitive information is accessed, used, and shared.
It helps reduce accidental disclosure, identify suspicious activity, and prevent important data from being transferred to inappropriate locations. It also strengthens the organisation’s ability to demonstrate that personal, confidential, and regulated information is protected through practical and measurable controls.
A well-designed DLP programme supports employees rather than simply monitoring them. Clear guidance, proportionate warnings, and secure alternatives help people make better decisions when handling sensitive information.
DLP also improves incident response. When an inappropriate transfer or unusual activity occurs, the organisation has clearer information, defined responsibilities, and an established process for investigating and responding.
Most importantly, Data Loss Prevention allows the organisation to use information with greater confidence. Employees can collaborate, communicate, and adopt new technologies while the business maintains appropriate visibility and control over its most important data.

Next Step

Protecting sensitive information requires more than blocking files or generating alerts.
Contact CA for an initial consultation. We will help you identify the most significant data loss risks, assess your existing controls, and develop a practical DLP programme that protects information while supporting the way your organisation works.