Cookie Policy
Last updated: 21 May 2026
1. What Are Cookies
Cookies are small text files placed on your device by websites you visit. They are used to make sites work, to remember your preferences, and to provide information about how the site is used. Similar technologies include local storage (data stored in your browser that persists beyond a session) and session storage (data that clears when you close the browser tab).
Under UK GDPR, EU GDPR, and the UK Privacy and Electronic Communications Regulations (PECR), analytics cookies require your consent before being set. Strictly necessary cookies do not require consent.
2. Cookies We Use
The table below lists every cookie set by quantumsecuritydefence.com, its purpose, the party that sets it, and how long it lasts.
Category 1: Strictly Necessary
These cookies are required for the site to function. They do not track you across sites and do not require your consent under PECR.
Category 2: Analytics Cookies (Require Consent)
Before you make a consent choice, PostHog runs in a cookieless memory-only mode: no cookie is set, no identifier is stored on your device, and the IP address received in transit is stripped before any event data is written to PostHog's EU servers. This limited pre-consent data collection does not require your consent under Art. 5(3) of the ePrivacy Directive (no storage on your device) and is carried out under legitimate interests for site analytics purposes.
The cookies below are set only when you accept analytics cookies via the consent banner. If you decline, these cookies are not set and no persistent analytics data is associated with your visit. Accepting upgrades PostHog from memory-only to full cookie-based tracking, which allows us to link your session across page loads and, if you submit an email form, to associate your browsing session with your email address via posthog.identify().
Category 3: Functional Cookies
Functional cookies remember your choices to improve your experience. They do not track you for advertising purposes.
Category 4: Marketing and Advertising Cookies
We do not currently use any advertising or retargeting cookies. We do not share visitor data with advertising networks. If this changes, this policy will be updated before any advertising cookies are set.
3. Consent Management
Who sees the consent banner
The cookie consent banner is displayed to visitors from the following jurisdictions only:
- United Kingdom (GB)
- European Union member states: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden (27 member states).
- European Economic Area (non-EU): Iceland, Liechtenstein, Norway.
- Switzerland
- Brazil
Visitors from all other jurisdictions receive PostHog analytics automatically under a legitimate interests basis. No consent banner is shown.
What the banner offers
For in-scope visitors, the banner presents three options:
- Accept all cookies: sets analytics cookies (PostHog) and functional cookies. You will be tracked anonymously across your visit, and if you submit a form, your email address will be linked to your session.
- Reject all: only strictly necessary cookies are set. Analytics cookies are not set. The site continues to function fully. A dismissible soft prompt will appear offering the QSECDEF LinkedIn page (linkedin.com/company/quantum-security-defence) as a voluntary alternative channel for updates. This is not a forced redirect.
- Cookie settings: opens a settings panel where you can accept or decline each category individually.
Your consent choice is stored in the qsecdef_cookie_consent cookie for 12 months. To change your choice at any time, clear your browser cookies and revisit the site.
Why we do not redirect visitors who decline
Automatically redirecting visitors who decline cookies to another platform constitutes a "cookie wall" under EDPB guidance. The European Data Protection Board's Opinion 05/2019 on the interplay between the ePrivacy Directive and GDPR, and subsequent enforcement practice, indicate that requiring visitors to accept tracking as a condition of accessing content is not a valid form of consent under Art. 7 GDPR. We therefore offer LinkedIn as a voluntary option, not a mandatory redirect.
4. Managing Cookies via Your Browser
You can control and delete cookies directly through your browser settings. Instructions for common browsers:
- Chrome: Settings > Privacy and security > Cookies and other site data
- Firefox: Preferences > Privacy & Security > Cookies and Site Data
- Safari: Preferences > Privacy > Manage Website Data
- Edge: Settings > Cookies and site permissions
Deleting cookies will reset your consent preference, and the consent banner will reappear on your next visit if you are in an in-scope jurisdiction.
5. Third-Party Cookies from Embedded Content
Some pages on this site may embed third-party content (for example, video recordings of lectures hosted on external platforms). Embedded third-party content may set its own cookies. We do not control these cookies. Where a page contains embedded content, we will note this and link to the relevant third party's cookie policy.
6. Changes to This Policy
We update this policy when we change which cookies we use, introduce new analytics features, or implement new third-party services. We will update the "last updated" date at the top of this page. For material changes that affect analytics cookies (for example, adding new tracking services), we will re-present the consent banner to existing visitors in in-scope jurisdictions.
7. Contact
For questions about our use of cookies, email info@qsecdef.com or visit our contact page.