Intruder Systems Ltd

	Page
Balance Sheet	1—2
Notes to the Financial Statements	3—5

Registered number: 09529593

		31 December 2025		31 December 2024
	Notes	£	£	£	£
FIXED ASSETS
Intangible Assets	4		20,128		30,285
Tangible Assets	5		22,064		12,529

			42,192		42,814
CURRENT ASSETS
Debtors	6	847,820		763,483
Cash at bank and in hand		1,253,054		1,199,783

		2,100,874		1,963,266
Creditors: Amounts Falling Due Within One Year	7	(2,693,592 )		(2,456,911 )

NET CURRENT ASSETS (LIABILITIES)			(592,718 )		(493,645 )

TOTAL ASSETS LESS CURRENT LIABILITIES			(550,526 )		(450,831 )

NET LIABILITIES			(550,526 )		(450,831 )

CAPITAL AND RESERVES
Called up share capital	8		13,225		13,178
Share premium account			1,095,626		1,094,097
Profit and Loss Account			(1,659,377 )		(1,558,106 )

SHAREHOLDERS' FUNDS			(550,526)		(450,831)

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Intruder Systems Ltd

Balance Sheet (continued)

As At 31 December 2025

For the year ending 31 December 2025 the company was entitled to exemption from audit under section 477 of the Companies Act 2006 relating to small companies.

The members have not required the company to obtain an audit in accordance with section 476 of the Companies Act 2006.

The directors acknowledge their responsibilities for complying with the requirements of the Act with respect to accounting records and the preparation of accounts.

These accounts have been prepared and delivered in accordance with the provisions applicable to companies subject to the small companies regime.

The company has taken advantage of section 444(1) of the Companies Act 2006 and opted not to deliver to the registrar a copy of the company's Profit and Loss Account.

On behalf of the board

Mr Christopher Wallis

Director

31/07/2026

The notes on pages 3 to 5 form part of these financial statements.

1. General Information

Intruder Systems Ltd is a private company, limited by shares, incorporated in England & Wales, registered number 09529593 . The registered office is 71-75 Shelton Street, London, WC2H 9JQ.

2. Accounting Policies

2.1. Basis of Preparation of Financial Statements

The financial statements have been prepared under the historical cost convention and in accordance with Financial Reporting Standard 102 section 1A Small Entities "The Financial Reporting Standard applicable in the UK and Republic of Ireland" and the Companies Act 2006.

During the prior period the company changed its accounting reference date from 30 April to 31 December to align the financial year end with the calendar year. As a result, the comparative financial statements cover an 8-month period from 1 May 2024 to 31 December 2024. Consequently, the results for the current period are not entirely comparable with those of the prior year.

2.2. Going Concern Disclosure

The directors have not identified any material uncertainties related to events or conditions that may cast significant doubt about the company's ability to continue as a going concern.

2.3. Turnover

Revenue represents amounts receivable for services provided in the ordinary course of business, net of value added tax and trade discounts.

Revenue is recognised only when it is probable that the economic benefits associated with the transaction will flow to the Company and the amount of revenue can be measured reliably.

Subscription revenue

The Company's principal source of revenue comprises recurring subscription fees for access to its software platform and related support services. Subscription contracts are generally invoiced monthly or annually in advance.

Revenue from subscriptions is recognised on a straight-line basis over the contractual subscription period, reflecting the continuous transfer of services to customers. Amounts invoiced in advance of the related service period are recognised as deferred income within creditors until the services have been provided.

Consultancy revenue

Consultancy revenue principally relates to implementation, configuration and advisory services provided to customers.

Where the outcome of a consultancy engagement can be estimated reliably, revenue is recognised by reference to the stage of completion of the contract at the reporting date. The stage of completion is determined based on the proportion of work performed to date relative to the total expected work required to satisfy the contractual obligations. Where the outcome cannot be estimated reliably, revenue is recognised only to the extent of recoverable costs incurred.

2.4. Intangible Fixed Assets and Amortisation - Other Intangible

Other intangible assets are made up of the acquired Nmap OEM Perpetual Redistribution License from Insecure Com LLC and the purchased IP address range, which is included in the current period’s intangible additions.

The Nmap license grants the perpetual right to redistribute the Nmap Security Scanner within Intruder’s products. The license includes benefits such as support, indemnification, warranty, and software updates, contributing to the continual improvement of services. It is amortised to the profit and loss account over its estimated economic life of 5 years.

2.5. Tangible Fixed Assets and Depreciation

Tangible fixed assets are measured at cost less accumulated depreciation and any accumulated impairment losses. Depreciation is provided at rates calculated to write off the cost of the fixed assets, less their estimated residual value, over their expected useful lives on the following bases:

Computer Equipment

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Intruder Systems Ltd

Notes to the Financial Statements (continued)

For The Year Ended 31 December 2025

2.6. Foreign Currencies

Monetary assets and liabilities in foreign currencies are translated into sterling at the rates of exchange ruling at the balance sheet date. Transactions in foreign currencies are translated into sterling at the rate ruling on the date of the transaction. Exchange differences are taken into account in arriving at the operating profit.

2.7. Taxation

Income tax expense represents the sum of the tax currently payable and deferred tax.

The tax currently payable is based on taxable profit for the year. Taxable profit differs from profit as reported in the statement of comprehensive income because of items of income or expense that are taxable or deductible in other years and items that are never taxable or deductible. The company's liability for current tax is calculated using tax rates that have been enacted or substantively enacted by the end of the reporting period.

Deferred tax is recognised on timing differences between the carrying amounts of assets and liabilities in the financial statements and the corresponding tax bases used in the computation of taxable profit. Deferred tax liabilities are generally recognised for all taxable timing differences. Deferred tax assets are generally recognised for all deductible temporary differences to the extent that it is probable that taxable profits will be available against which those deductible timing differences can be utilised. The carrying amount of deferred tax assets is reviewed at the end of each reporting period and reduced to the extent that it is no longer probable that sufficient taxable profits will be available to allow all or part of the asset to be recovered.

Deferred tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realised, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. Deferred tax liabilities are presented within provisions for liabilities and deferred tax assets within debtors. The measurement of deferred tax liabilities and assets reflect the tax consequences that would follow from the manner in which the Company expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities.

Current and deferred tax are recognised in profit or loss for the year, except when they relate to items that are recognised in other comprehensive income or directly in equity, in which case current and deferred tax are recognised in other comprehensive income or directly in equity respectively.

3. Average Number of Employees

Average number of employees, including directors, during the year was: 44 (2024: 45)

4. Intangible Assets

	Other
	£
Cost
As at 1 January 2025	50,784

As at 31 December 2025	50,784

Amortisation
As at 1 January 2025	20,499
Provided during the period	10,157

As at 31 December 2025	30,656

Net Book Value
As at 31 December 2025	20,128

As at 1 January 2025	30,285

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Intruder Systems Ltd

Notes to the Financial Statements (continued)

For The Year Ended 31 December 2025

5. Tangible Assets

	Computer Equipment
	£
Cost
As at 1 January 2025	54,219
Additions	20,838

As at 31 December 2025	75,057

Depreciation
As at 1 January 2025	41,690
Provided during the period	11,303

As at 31 December 2025	52,993

Net Book Value
As at 31 December 2025	22,064

As at 1 January 2025	12,529

6. Debtors

	31 December 2025	31 December 2024
	£	£
Due within one year
Trade debtors	367,067	408,882
Other debtors	480,753	354,601

	847,820	763,483

7. Creditors: Amounts Falling Due Within One Year

	31 December 2025	31 December 2024
	£	£
Trade creditors	334,247	337,247
Other creditors	2,186,590	1,880,432
Taxation and social security	172,755	239,232

	2,693,592	2,456,911

8. Share Capital

	31 December 2025	31 December 2024
	£	£
Allotted, Called up and fully paid	13,225	13,178

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