PRIVACY Logs

Opt-in requires the user to actively agree before data processing begins. Opt-out assumes consent unless the user objects. Only opt-in is legally valid in the EU. The EU Court of Justice (EuGH) ruled in the Planet49 case (October 1, 2019) that the only valid form of consent for p...

Quiz: PRIVACY / Introduction to Privacy and Data Protection | updated: Jul 14, 2026

The CIA triad consists of Confidentiality (information stays secret), Integrity (information stays correct and unaltered), and Availability (information and systems remain accessible when needed). * The CIA triad of information security. — Michel Bakni, CC BY-SA 4.0, via Wikimed...

Quiz: PRIVACY / Identities, Anonymity & Data Protection Goals | updated: Jul 14, 2026

Each of the six goals (confidentiality, integrity, availability, transparency, unlinkability, intervenability) translates into specific backup measures — showing how abstract principles become concrete technical requirements. Applying all six goals to data backups: Goal Backup...

Quiz: PRIVACY / Identities, Anonymity & Data Protection Goals | updated: Jul 14, 2026

"Skilled significance seekers" use social media at a rate of 95%, compared to only 30% for "action-oriented jihadists" — the more operationally focused someone is, the less they post online. * The most operationally dangerous actors post the least — the SOCMINT detection paradox...

Quiz: PRIVACY / Social Media Intelligence (SOCMINT) | updated: Jul 14, 2026

A small set of well-known practitioners and projects publish the field's working knowledge — Bellingcat, OSINTCurious, Week in OSINT, and IntelTechniques among them. Because tools and platforms change constantly, staying current means following the people who track those changes....

Quiz: PRIVACY / Social Media Intelligence (SOCMINT) | updated: Jul 14, 2026

Apps bypass the browser entirely — they have direct, privileged access to hardware sensors, OS APIs, and persistent storage, enabling far more comprehensive data collection than web tracking. Why apps are more invasive: No HTTP-based tracking — apps use proprietary communication...

Quiz: PRIVACY / Web Tracking | updated: Jul 14, 2026

Detection difficulty, sheer scale and volume, translating policy into technical controls, and the need for continuous adaptation. Challenge Why it's hard Detection difficulty Automated systems struggle to reliably find all PII in free-form text, media, and complex formats....

Quiz: PRIVACY / Cryptographic Privacy & Big Data — Zero-Knowledge Proofs, MPC, Homomorphic Encryption & Anonymization | updated: Jul 14, 2026

Rule-based guardrails use deterministic patterns (regex, entity lists, similarity thresholds); model-based guardrails use AI classifiers or an LLM-as-judge to evaluate content. Rule-based Model-based Pattern matching — regex for URLs, credit cards, SSNs (e.g. Microsoft Pre...

Quiz: PRIVACY / Privacy in AI & ML — Differential Privacy, Synthetic Data & LLM Security | updated: Jul 14, 2026

Privacy is the claim of individuals, groups, and institutions to determine for themselves when, how, and to what extent information about them is communicated to others. * Westin's three dimensions of privacy: personal, territorial, informational. * This landmark definition come...

Quiz: PRIVACY / Introduction to Privacy and Data Protection | updated: Jul 14, 2026

Any handling of personal data whatsoever, regardless of the means or methods used. The legal definition is deliberately broad. Data processing includes any operation involving personal data. The five main categories are: Operation German term What it covers Collecting Besc...

Quiz: PRIVACY / Introduction to Privacy and Data Protection | updated: Jul 14, 2026