Ethical hacking is the practice of legally breaking into computers, networks, and applications to find security weaknesses before criminals do. Ethical hackers take permission from the organisation, probe systems the same way an attacker would, and then report the flaws responsibly so they can be fixed. Companies like Google, Apple, and Microsoft even pay rewards and maintain hall-of-fame recognitions for hackers who report genuine vulnerabilities.

Build the foundation first: computer networking (TCP/IP, DNS, HTTP), Linux basics, and one scripting language like Python. Then move into security — study the OWASP Top 10, learn tools like Nmap, Burp Suite, and Wireshark, and practise on legal lab platforms such as TryHackMe, Hack The Box, and PortSwigger Web Security Academy. Certifications like CEH or OSCP help you get shortlisted, but a portfolio of hands-on labs and responsibly disclosed vulnerabilities is what actually gets you hired.

Ethical hacking course fees in India range from completely free to over ₹1 lakh. Free and budget options include YouTube playlists, discounted Udemy courses (usually ₹500–₹2,000), and free tiers of lab platforms. Structured programs from training institutes generally cost ₹15,000–₹50,000, while globally recognised certifications like CEH or OSCP can cost ₹60,000–₹1,50,000 including exam fees. A sensible path is to start free, confirm your interest, and only then invest in a certification.

Freshers with a certification and lab experience typically earn ₹3–6 LPA in roles like SOC analyst or junior penetration tester. With 3–5 years of experience, security analysts and penetration testers commonly make ₹8–15 LPA, and senior application security or red-team specialists can cross ₹20–30 LPA. Bug bounty income is separate and uncapped — it depends entirely on the severity of the vulnerabilities you find.

Look for structured Hindi playlists and courses that follow the same progression as English programs: networking basics → Linux → Kali Linux tools → web application attacks. Several Indian creators and ed-tech platforms teach full ethical hacking content in Hindi at low cost. Since most lab environments, tools, and job interviews run in English, use Hindi to build concepts quickly but learn the technical terminology in English side by side.

A bug bounty program is a public offer by a company to reward hackers for finding and responsibly reporting security vulnerabilities in its products. Companies like Google, Microsoft, Meta, and Apple run such programs, paying anywhere from recognition and swag for low-severity issues to several lakhs of rupees for critical bugs. The rules, scope, and reward tiers are defined by each company, and reports are submitted through a dedicated platform or disclosure form.

First learn how the web actually works — HTTP requests, cookies, sessions, and authentication — then study common vulnerabilities from the OWASP Top 10 like XSS, IDOR, and SQL injection. Practise in safe labs such as PortSwigger Web Security Academy before touching real targets. Create accounts on bug bounty platforms, pick programs with wide scope and clear policy, read previously disclosed reports to learn what gets accepted, and expect your first valid bug to take weeks or months of consistent hunting.

A workable bug bounty roadmap: spend one to two months on web fundamentals and Linux; the next one to two months on OWASP Top 10 hands-on labs; then learn recon — subdomain enumeration, Google dorks, and directory discovery — to map a target's attack surface. After that, specialise in one bug class (for example, IDOR or access control), target live programs on established platforms, and write clear reproduction steps in every report. Reviewing newly disclosed reports weekly is the fastest way to sharpen your instinct.

HackerOne and Bugcrowd host the largest number of programs and maintain public databases of disclosed reports, which makes them ideal for learning. Intigriti and YesWeHack are strong alternatives, while companies like Google, Microsoft, and Apple run their own programs directly. Beginners should start with wide-scope programs or vulnerability disclosure programs where competition is lower, rather than jumping straight into the most popular targets.

A footprint chart is an order-flow chart that shows the actual traded volume at each individual price level inside every candle, split between buyers (ask) and sellers (bid). While a normal candlestick only tells you the open, high, low, and close, a footprint chart reveals the auction happening inside the candle — who was aggressive, where volume clustered, and where price was accepted or rejected. Intraday index, futures, and crypto traders use it to read order flow in real time.

Read each horizontal row as bid volume × ask volume at that price. Watch the delta (ask volume minus bid volume) — rising positive delta into a breakout confirms genuine buying pressure, while delta divergence at a high signals exhaustion. Diagonal imbalances between cells show aggressive one-sided orders, and absorption is visible when very high volume prints but price barely moves. With practice, stacked imbalances, unfinished auctions, and the point of control become your key reference levels.

Use footprints as confirmation, not as a standalone signal. At a support or resistance level, look for absorption — heavy volume with no follow-through — before fading a move. For breakouts, check that delta and volume expand in the direction of the break; a breakout on weak delta is often a trap. Many traders combine footprints with cumulative volume delta and open interest so entries align with both order flow and position building instead of reacting to a single candle.

TradingView offers a native volume footprint chart type, but it is a paid-plan feature rather than something available on the free tier, so check your current plan first. Free alternatives include community-published footprint-style indicators in the TradingView public library, though they are less detailed than the native feature. Dedicated order-flow platforms like Exocharts, ATAS, Sierra Chart, and NinjaTrader offer fuller footprint tools, and MT5 users can add third-party footprint indicators for forex and crypto.

CVD stands for Cumulative Volume Delta — a running total of aggressive buying volume minus aggressive selling volume. When price makes a new high but CVD fails to confirm, it suggests buyers are losing strength (bearish divergence); the reverse signals hidden selling pressure. Traders use CVD alongside footprint charts and open interest to judge whether a price move is backed by real order flow or just a thin-liquidity wick.

A funded account means a proprietary trading firm gives you its capital to trade in exchange for a profit split. The typical path: build one strategy with months of backtested and forward-tested results, pass the firm's evaluation (profit target plus strict daily and overall drawdown limits), and then follow the same risk rules on the funded account. Most traders fail evaluations by overtrading and breaking drawdown rules, so consistency and position sizing matter far more than chasing the profit target quickly.