- Build is now our in-app coding lab, with guided Rust lessons, a more visible entry point in Practice, and direct handoff from related exercises into matching Build lessons. - Added new real-world exploit and CVE content, including PAN-OS User-ID Authentication Portal (CVE-2026-0300), cPanel & WHM (CVE-2026-41940), TanStack npm Supply Chain, Ivanti Endpoint Manager Mobile (CVE-2026-6973), Grok Bankrbot Morse-Code Prompt Injection, TrustedVolumes RFQ Proxy Drain, and 1inch Fusion V1 Settlement. - Expanded exploit browsing and study coverage, so newer incidents are searchable, browsable, and tied into the real-world incident catalog more cleanly. - Widgets now cover three experiences: Glossary, Exploits, and Checklist Progress. - Updated widget functionality with manual rotation, a new Every 15 minutes rotation option, improved compact layouts, better deep links, and more reliable shared rotation state. - Improved glossary and reference content, including new glossary terms and stronger deep links from widgets into full in-app content. - Added more checklist and sharing polish, including hint-level share/copy support and better widget syncing for checklist progress. - Refreshed references and learning content across chains, wallets, and security material so more of the catalog feels current and easier to browse.

• Glossary widgets — Review rotating security and developer terms from your Home Screen or Lock Screen. • New real-world incident lessons — Added KelpDAO rsETH Bridge and Litecoin MWEB reorg exercises. • Widget customization — Choose a domain, rotation cadence, text size, color, and minimal just-text presentation.

Memory exam card polish, plus new incident packs for Rhea Finance, Hyperbridge, Fortinet EMS, and wolfSSL (CVE-2026-5194). Expanded exercises, glossary entries, Solana material, Solidity EVM crypto snippets, and ZK proof content.

Deep Dive polish — Faster navigation, a new favorites shelf, smoother customization, and added contract links and papers. Practice filters — Hide and reorder chips so it is easier to focus on the topics you want. More real-world learning — New exploit content, glossary links, and refreshed security packs.

• **Operator profile** — Pick your callsign in onboarding. It appears in scenarios, War Rooms, and Stats. • **Deep Dive Hub** — Home is now a launchpad. Curated tracks for Web2, Web3, Rust, ZK, and Trading. Recommended row based on your weak areas. Build your own from bookmarks or missed questions. • **Memory-match exam** — New exam mode: flip cards and match terms across Opcodes, EIPs, Security Terms, DeFi, and more. • **Glossary test** — Test yourself on term definitions in any domain directly from the Exam tab. • **Safety checklists** — OpSec, Wallet & Web3, Protocol Reading, and Emergency Response checklists on Home. • **Starred exploits** — Favorite incidents in Real World Exploits and jump back with a starred-only filter.

More real-world exploit exercises — New and refined incident-linked drills: USR, CoW-Swap, Solv, DBXen, Venus, and Aave CAPO. Learning UX — ML, ZK Proofs, and Dev Concepts subdomain chips.

Free to download. Unlock all content with a one-time $4.99 purchase. Try Rust, Solidity, Exploits, and DeFi for free—no account required. • Ops & War Rooms — Consequence-based narrative sessions: Thriller mode (limited lives, story-driven) and War Room (real-incident timeline simulations). Earn scenario badges. • Bitcoin domain — First-class domain with subdomain filters: Basics, Script, Consensus, Lightning & L2. • Protocol Patterns — DeFi architecture reference in More tab. Practice patterns with tagged questions. • EIP Atlas — Searchable standards (ERC-20/721/4626, ERC-4337, EIP-712, etc.). "Practice this EIP" routes to tagged questions. • Real World Exploits browse — Searchable incidents list. Tap row → detail → practice with full incident sessions. • Solidity antipatterns — Dedicated snippet set, EIP antipatterns field. • Trading Strategies subdomain chips — Arbitrage, Market Making, MEV, Execution, Risk Management. • Web2 exploits — Log4Shell, Heartbleed, SolarWinds, buffer overflows, path traversal, SSRF. • Cryptography subdomain — New Cybersecurity chip for crypto-focused practice. • Assembly / Yul — Solidity subdomain for inline assembly questions. • Rust Performance — New subdomain chip and gap-fill content.

Free to download. Unlock all content with a one-time $4.99 purchase. Try Rust, Solidity, Exploits, and DeFi for free - no account required. • Subdomain filters - Filter by topics like Reentrancy, Oracle, and Basics in Rust, Solidity, DeFi, and Exploits. • New questions & real exploits - Aave + CoW Swap (~$50M), Aave wstETH CAPO (~$26M), Cetus Protocol ($223M, Sui), KiloEx oracle, and more. "In the wild" callouts link each exploit to verified incidents. • Spaced repetition - Questions you miss are resurfaced at intervals to strengthen weak areas. • Premium onboarding - Premium users can select ZK Proofs during onboarding.

• On-chain feedback — Submit feedback via WalletConnect (Base or Ethereum). View your feedback on block explorers. • Stats badges — See all tier badges (Pro, Expert, Zero Day Master), domain certifications, and achievements with lock/unlock state. • Lightning Round — Now interactive-only (tap, swipe, drag, match) with up to 50 questions per run. • New content — 9 new domains (cybersecurity, DeFi, trading, ZK proofs, and more) plus Snowden, Wireshark, and trading questions. • Bookmarks — Quick "Practice bookmarked" flow from saved questions. • UX hints — Code wrap and Glossary tips when you need them.