Telecommunications

Subscriber Data Stays on Your
Carrier's Network.

Support agents, network engineers, and billing staff at telecom carriers are using ChatGPT, Claude, and Copilot every day — pasting account numbers, call records, IMEI identifiers, and payment details into prompts. Shield sits on your carrier's machines and stops subscriber data from ever reaching an external AI model. No cloud. No vendor access. Just a local proxy that redacts CPNI and PII before it leaves your network.

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Quick Answer

Shield for Telecommunications is a local desktop application that stops CPNI, call records, IMEI/IMSI identifiers, subscriber PII, and payment data from ever leaving your telecom's computers — before that data reaches ChatGPT, Claude, Copilot, or any AI model. It runs on your existing machines, requires no cloud infrastructure, and helps carriers meet CPNI, CALEA, and FCC 2024 data breach notification requirements without changing how support agents, network engineers, and billing staff use AI tools.

CPNI

FCC-mandated protection since 1996

Customer Proprietary Network Information (CPNI) is protected under Section 222 of the Communications Act and FCC rules at 47 CFR § 64.2001. Carriers must safeguard who-you-call data, device location, service subscriptions, and usage patterns from unauthorized access. Annual compliance certifications are required — and AI prompts containing CPNI constitute a disclosure that must be controlled.

Source: 47 U.S.C. § 222; 47 CFR § 64.2001 et seq

7 Days

FCC breach notification deadline (2024 rules)

Under the FCC's expanded 2024 Data Breach Reporting Requirements — upheld by the Sixth Circuit — telecom carriers must notify the FCC, FBI, and Secret Service within seven business days of discovering a breach affecting 500+ customers or posing reasonable risk of harm. Customer notification must follow within 30 days. The rules cover all PII, not just CPNI. A single agent inadvertently pasting customer data into an AI prompt could trigger these obligations if it affects enough subscribers.

Source: FCC Report and Order, Data Breach Reporting Requirements, February 2024; Sixth Circuit upheld August 2025

Zero

Subscriber data leaves your network

Shield runs locally on your telecom's machines — no cloud processing, no vendor data access. Call records, IMEI/IMSI identifiers, account numbers, payment details, and service addresses never reach external AI providers. The redaction mapping stays on your machine, inside your carrier's network boundary.

Shield operates within your network boundary

See CPNI Redaction in Action

Three real-world scenarios where telecom staff paste subscriber data into AI tools — and how Shield catches it before it leaves your network.

Support Agent Using AI to Resolve a Service Outage Ticket

A customer support agent at a regional telecom provider uses an AI assistant to summarize a customer's account history and recent service issues before escalating to tier 2 support. The agent pastes the full ticket log including CPNI, call records, and device identifiers.

⚠ Raw Prompt — Data Exposed

Summarize this customer's issue for escalation: Account #8834-2291-TC, customer James Chen, phone (214) 555-0178, address 4550 Preston Road, Suite 210, Frisco TX 75034. Device: iPhone 15 Pro Max, IMEI 35-209001-238476-1, SIM ICCID 89148000004201157363. Service issue: intermittent data drops on LTE band 4 for 5 days. Recent call history: 14 calls to support in past 30 days, average hold time 18 min. Last technician visit: Aug 12, 2026 — replaced antenna, no improvement. CPNI records show: 87% of calls to numbers in area code 469, peak usage 7-9 PM. Account status: Delinquent — balance $287.40, last payment July 3, 2026. Customer threatened to switch carriers on last call (Aug 28).

✓ Shield-Protected — Data Redacted

Summarize this customer's issue for escalation: Account #[ACCOUNT_ID], customer [CUSTOMER_NAME], phone [PHONE], address [ADDRESS]. Device: [DEVICE_MODEL], IMEI [IMEI], SIM ICCID [ICCID]. Service issue: intermittent data drops on [NETWORK_BAND] for [DURATION]. Recent call history: [NUMBER] calls to support in past 30 days, average hold time [DURATION]. Last technician visit: [DATE] — replaced antenna, no improvement. Calling patterns: [PERCENTAGE] of calls to numbers in area code [AREA_CODE], peak usage [TIME_RANGE]. Account status: Delinquent — balance [AMOUNT], last payment [DATE]. Customer sentiment: [SENTIMENT_SUMMARY] on last call.

Detected & Redacted (8 matches):

CPNI — Account—8834-2291-TC

PII — Name—James Chen

PII — Phone—(214) 555-0178

PII — Address—4550 Preston Road, Suite 210, Frisco TX 75034

CPNI — Device—35-209001-238476-1

CPNI — Device—89148000004201157363

CPNI — Usage—87% / 469 / 7-9 PM

PII — Financial—$287.40

How Shield Protects Your Telecom Network

Shield runs locally inside your carrier's network boundary. Subscriber data is redacted BEFORE it reaches any external AI provider — CPNI, IMEI, IMSI, and PII never leave your infrastructure.

Telecom Compliance: How Shield Maps to Your Obligations

Six regulatory frameworks that govern telecom data — and how Shield satisfies their requirements at the AI prompt boundary.

Framework	Scope	Key Requirement	How Shield Helps
CPNI Rules	FCC — 47 CFR § 64.2001 et seq	Protect CPNI from unauthorized access, use, or disclosure; file annual compliance certifications; train personnel; notify customers of CPNI rights	Redacts CPNI — call records, device identifiers (IMEI/IMSI/ICCID), location data, service subscriptions, and usage patterns — before AI prompts leave the agent's machine. Carrier maintains compliance without changing agent workflows.
CALEA	47 U.S.C. § 1001-1010 — lawful interception + network security	Ensure networks are capable of lawful interception; protect communications from UNLAWFUL access or interception; secure network infrastructure	Prevents subscriber communications data and network identifiers from leaking through AI prompts — an unauthorized access vector that CALEA's security obligations are designed to close.
FCC Data Breach Rules	2024 Order — all telecom PII; 7-day federal + 30-day customer notification	Notify FCC/FBI/Secret Service within 7 business days of breach (500+ customers or risk of harm); notify customers within 30 days; file annual breach summary	Reduces breach risk at the source: stops customer PII from reaching external AI providers, shrinking the attack surface that can trigger mandatory federal notification obligations.
GDPR	EU subscriber data — cross-border transfer restrictions	Lawful basis for personal data processing; adequate safeguards for international data transfers; data minimization; breach notification within 72 hours	Redacts EU subscriber PII before it crosses borders to non-EU AI providers. No GDPR-regulated personal data reaches the model — satisfying data minimization and transfer safeguard requirements.
NIST CSF	Cybersecurity framework for critical infrastructure	Identify, Protect, Detect, Respond, Recover — with specific controls for data security (PR.DS), access control (PR.AC), and protective technology (PR.PT)	Serves as a protective technology (PR.PT) control: prevents sensitive telecom data from leaving the organization through AI prompts, enforcing data security controls at the endpoint.
ISO 27001:2022	International information security management standard	Organizational, people, physical, and technological controls — including information transfer (A.5.14), access control (A.5.15, A.8.3), and data leakage prevention (A.8.12)	Addresses the technological controls domain: A.5.14 (information transfer rules), A.8.12 (data leakage prevention), and A.8.3 (information access restriction). Shield enforces transfer policies at the AI prompt boundary.

Frequently Asked Questions

Customer Proprietary Network Information (CPNI) is the data telecom carriers collect about your phone service — who you call, when you call, how long you talk, your device location, and which services you subscribe to. Under FCC rules (47 CFR § 64.2001 et seq), carriers must protect CPNI from unauthorized access and disclosure — and must file annual certifications confirming compliance. When a support agent pastes a customer's call history or account details into ChatGPT or Copilot, that CPNI leaves the carrier's controlled environment. Shield stops that data before it reaches the AI provider, keeping the carrier compliant with CPNI rules without changing how agents work.

CALEA (Communications Assistance for Law Enforcement Act, 47 U.S.C. § 1001-1010) requires telecom carriers to ensure their networks can support lawful interception by law enforcement — but it also requires carriers to secure their networks from UNLAWFUL access to communications. When employees use AI tools and inadvertently expose call records, subscriber identities, or network architecture details in prompts, they create a data exposure path that CALEA's security obligations were designed to prevent. Shield acts as a safeguard: it stops CPNI, subscriber PII, and network data from leaving your infrastructure through AI prompts, helping satisfy CALEA's requirement that carriers protect communications from unauthorized access.

Under the FCC's 2024 Data Breach Reporting Requirements (upheld by the Sixth Circuit in 2025), telecom carriers must notify the FCC, Secret Service, and FBI within seven business days of discovering a breach affecting 500 or more customers — or any breach where customer harm is reasonably likely. Carriers must also notify affected customers within 30 days. The rules cover ALL personally identifiable information (not just CPNI) and apply to both intentional and inadvertent breaches. Shield helps reduce breach risk at the source — by preventing customer data from reaching external AI systems in the first place, you reduce the attack surface that triggers these notification obligations.

Shield's filter packs include patterns for telecom-specific identifiers — IMEI (15-digit device serial), IMSI (15-digit subscriber identity), ICCID (19-20 digit SIM identifier), and account numbers in common telecom formats. The entropy-based detection engine catches these even when they don't match a rigid pattern, and the regex engine provides deterministic matching for known formats. You can also add custom patterns for your internal account numbering scheme. All redaction happens locally on the agent's machine — no device identifiers ever leave your network.

Yes — and the exposure risk is arguably higher. GDPR applies to any telecom carrier handling EU resident data, and AI prompts containing subscriber PII constitute cross-border data transfers if the AI provider's servers are outside the EU. Under GDPR, carriers must have a lawful basis for processing personal data and must ensure adequate safeguards for international transfers. Shield provides that safeguard: customer data is redacted BEFORE it reaches the AI provider, so no GDPR-regulated personal data crosses the border. This is especially relevant for multinational carriers with both US and EU operations.

Yes. Shield installs on any Mac, Windows, or Linux machine and can be pushed via your existing device management tools — MDM for laptops, group policy for Windows workstations, or configuration management for Linux servers. Your security team defines the redaction policies once, and they apply consistently across every agent's machine. Audit logs can be centrally collected for compliance reporting. For contact centers with hundreds or thousands of agents, Shield eliminates the human-error risk of one agent pasting sensitive subscriber data into an AI prompt — which, under the FCC's expanded 2024 breach rules, could trigger mandatory federal notification if it affects 500+ customers.

Shield for Financial Services

Keep account numbers, SSNs, and portfolio data safe under PCI DSS and GLBA.

Shield for Government & Defense

Protect CUI, ITAR-controlled data, and classified information under NIST 800-171 and CMMC.

Shield for Insurance

Safeguard claims data, underwriting notes, and policyholder PII under HIPAA and GLBA.

Ready to Protect Your Subscribers' Data?

Shield installs in minutes. Your subscribers' CPNI, call records, device identifiers, and payment data stay on your carrier's machines — where the FCC, your compliance team, and your customers expect them to be.

Talk to Our Team How Shield Works

Last updated: July 28, 2026

Subscriber Data Stays on YourCarrier's Network.