Data Transit Security

Data moving between devices, clouds, agents and tools.

A misconfigured Volkswagen cloud store exposed location and owner data for about 800,000 electric vehicles in December 2024. A July 2026 study found 91.8% of tested MCP servers lacked OAuth.

MCP server exposure: Internet-facing, Jul 2025 1,862; Production servers confirmed, 2026 640; Tested servers lacking OAuth 380 of 414 MCP SERVER EXPOSURE Internet-facing, Jul 2025 1,862 Production servers confirmed, 2026 640 Tested servers lacking OAuth 380 of 414 SERVERS
VW EVs exposed
~800,000
US companies hit by Salt Typhoon
200+
Countries targeted
80+
Registry incidents
1

Evidence

Telecom intercepts and open agent servers expose data in motion

Documented cases: data Transit Security
DateCaseCountryWhat happenedSource
Dec 2024VW Cariad leakGermanyLocation data for about 800,000 EVs in a misconfigured cloud storeSource
Aug 2025Salt Typhoon FBI updateChina (attacker)Telecom intrusions reached call records and lawful-intercept systemsSource
Jul 2025Knostic MCP scanGlobal1,862 MCP servers exposed; all 119 checked by hand listed tools without loginSource
Jul 2026Exposed by Design studyGlobal47 servers had critical tool-poisoning findingsSource

Registry

One registry incident involves data in transit

Registry incidents meet a stricter bar than the cases above: public sources name the developer, the failed control and who found it.

Exposure

Three of 17 agent types rate very significant or critical on connectivity surface

From the attack surface ratings, the agent types where this risk has the widest path in.

Agent types most exposed
Agent typeDimensionRating
DronesConnectivity surfaceVery significant
Fleets and swarmsConnectivity surfaceVery significant
Smart home assistantsConnectivity surfaceVery significant

Controls that bound it

Rules

China controls data export by threshold; the US bans adversary connected-vehicle software

Rules that address data in transit
RuleJurisdictionWhat it requiresStatus
Cross-border data flow provisionsChinaFiling, contract or assessment by volume thresholdMar 22, 2024
Network data security management regulationsChinaProcessing and cross-border rulesEffective Jan 1, 2025
BIS connected vehicle ruleUSBans China- and Russia-linked connectivity software and hardwareFinal Jan 2025
NIS2 DirectiveEUSecurity duties for telecom and digital infrastructureDeadline Oct 17, 2024

Status colors: green in force, blue voluntary standard or framework, amber adopted and phasing in, gray draft or pending, red withdrawn.

Record

Page Record

Risk group
Data Risks
Datasets
ai_risk_evidence.csv (4 rows); registry incidents (1 linked); ai_attack_surface.csv
Key sources
VW Cariad leak
Salt Typhoon FBI update
Knostic MCP scan
Exposed by Design study
Last verified
October 2026