Komori
Occurring Fact4165PLAID,Inc.Information and Communications, Services and Others

Notice Regarding Unauthorized Access to Our Services

Unauthorized access to KARTE by a third party was detected, and all functions, including measurement, delivery and the administration console, were sequentially suspended across all projects using KARTE as emergency maintenance. The impact on business performance is currently under investigation and review.

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Notice Regarding Unauthorized Access to Our Services

Subject Entity

PLAID,Inc. (the Company)

Target Locations / Products

All projects using KARTE, and the entire KARTE service

Occurrence13 November 2026 (the date unauthorized access was detected)
Same day
Awareness or receipt of notice13 November 2026 (the date unauthorized access was detected)
This disclosure11/13/2026
Cause

Unauthorized access by a third party

Accounting period in which recognized

Fiscal year ending December 2026

Impact on Earnings Forecast

The impact of this matter on performance for the fiscal year ending December 2026 is currently under review.

Company response

Suspended operations

All KARTE functions, including web and app measurement, various types of delivery and administration console operations, were sequentially suspended across all projects using KARTE.

Investigation structure

Investigation and remedial measures are under way to resolve the issue.

Outlook

Investigation and remedial measures are under way to resolve the issue, and any matters requiring disclosure or new facts that come to light will be promptly disclosed. Details will be provided on the status page.

Planned follow-up disclosure

We will report again once new facts come to light.

Event that occurred
ItemDetails
Event nameNotice Regarding Unauthorized Access to Our Services
Date of occurrence13 November 2026 (the date unauthorized access was detected)
Date recognized / date notice received13 November 2026 (the date unauthorized access was detected)
Subject EntityPLAID,Inc. (the Company)
Target Locations / ProductsAll projects using KARTE, and the entire KARTE service
CauseUnauthorized access by a third party
Accounting period in which recognizedFiscal year ending December 2026
Impact on Earnings ForecastThe impact of this matter on performance for the fiscal year ending December 2026 is currently under review.
Suspended operationsAll KARTE functions, including web and app measurement, various types of delivery and administration console operations, were sequentially suspended across all projects using KARTE.
Investigation structureInvestigation and remedial measures are under way to resolve the issue.
OutlookInvestigation and remedial measures are under way to resolve the issue, and any matters requiring disclosure or new facts that come to light will be promptly disclosed. Details will be provided on the status page.
Planned follow-up disclosureWe will report again once new facts come to light.
Items this document does not state (13)
Amount of Impact on Business PerformanceType of litigation or proceedingCourt or authorityPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionScheduled resumption dateMeasures to prevent recurrenceDirectors' and officers' liabilityVoting rights ownership percentage before the changeVoting rights ownership percentage after the change

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

Because unauthorized access by a third party was detected, the entire KARTE service is currently suspended as emergency maintenance to resolve the issue.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice Regarding Unauthorized Access to Our Services | PLAID,Inc. (4165) timely disclosure | Komori