CHAPTER 01

Last reviewed: October 10, 2026

Phishing, fake ads, and social tricks

Most reported breaches still begin when a person opens a message, advertisement, or web page that only looked official.

In 2025 the FBI logged 191,561 phishing and spoofing complaints. Direct losses jumped 208% to about $216 million, even though the complaint count barely moved. Each hit is doing more damage. 1

AI wiped out the old tells. Spelling is clean. Logos are right. Celebrity deepfake ads and QR-code lures are now ordinary. What still works is context: you were not expecting this, and the message wants you to act before you think.

Legitimate companies almost never demand a password, a payment, or a gift card by surprise email. Close the message. Type the real address yourself.

Words in this chapter

Phishing. A message, page, or advertisement that pretends to be a company or a person you trust, so you will give up a password, a code, or money.

Deepfake. Audio or video generated to imitate a real person’s voice or face. A familiar voice on the phone is no longer proof.

CHAPTER 02

Last reviewed: October 10, 2026

Email as the master key

The person who controls your email can reset the password on almost every other account you own.

Business email compromise cost $3.05 billion in 2025 from only about 25,000 complaints — roughly $123,000 per report. The attack is simple: a message that looks like a vendor, a boss, or payroll, asking for a wire change. 1

Filters catch a lot. They do not catch a well-aimed note written by a model that already knows your name and a recent invoice.

Words in this chapter

Business email compromise. A fraudulent email that looks like a vendor, an executive, or a payroll office and asks you to change where a payment is sent.

CHAPTER 03

Last reviewed: October 10, 2026

Public Wi-Fi and VPNs: what they do and don't do

A virtual private network is optional for most people. It does not stop phishing or scams.

Most websites already use HTTPS, which encrypts the page between your browser and the site. On café or airport Wi-Fi, that already stops a stranger on the same network from reading a password as it travels. A virtual private network adds a tunnel from your device to a company’s server. It can hide which sites you visit from the café. It cannot tell a real bank page from a fake one, and it cannot stop you from typing a recovery phrase.

You do not need one for ordinary email, banking, or shopping, especially on your phone’s own cellular connection. If you still want one on a public network, pay a known provider and install it from that provider’s site or the official store. Free virtual private networks, and applications that only pretend to be one, often sell data or are malware themselves.

Words in this chapter

Virtual private network. A service that encrypts the connection between your device and a server the company runs, which hides that traffic from people on the same public wireless network. It does not stop you from typing a password into a fake site. A kill switch is a setting on that service that blocks internet access if the secure tunnel drops, so your traffic does not leak in the open.

Public Wi-Fi. A wireless network you do not control, such as a café, hotel, or airport. Most sites already encrypt the page. A virtual private network is optional and does not stop a scam.

CHAPTER 04

Last reviewed: October 10, 2026

Passwords, passkeys, and keys

Using one password on many sites is how a single company breach becomes many stolen accounts.

A password manager generates a long unique secret for every site and is the only realistic way to stop reuse. Bitwarden is the strong free and open option. 1Password is the smoothest daily driver. Proton Pass fits if you already live in that ecosystem.

The order of protection is passkeys, then a hardware key, then an authenticator app, then SMS. SMS codes can be stolen with a SIM swap. Hardware keys refuse to answer a fake domain.

Check old passwords at haveibeenpwned.com. If one is in a breach, change it everywhere it was reused — then stop reusing it.

Words in this chapter

Password manager. An application that creates and stores a different long password for every account, so you only have to remember one master password.

SIM swap. A criminal convinces your mobile carrier to move your phone number onto their card, then receives your calls and text-message codes.

CHAPTER 05

Last reviewed: October 10, 2026

Romance scams

A romance scam uses affection, or the promise of it, to get money from you.

The person may arrive on a dating site, in a social-media message, or as a wrong number that keeps talking. They are warm, they have a reason they cannot meet, and the conversation turns to money. Sometimes it is a medical bill or a travel emergency. Often it becomes a private investment. They may never ask for a date in person.

Do not send money, gift cards, or cryptocurrency to someone you have not met. A video call does not prove the relationship is real, because video can be staged or generated. If the talk turns to an investment, stop. That pattern is also covered in the cryptocurrency kit under the long investment scam.

Words in this chapter

Romance scam. A relationship used to extract money. It may never meet in person, and it often turns into an investment pitch.

CHAPTER 06

Last reviewed: October 10, 2026

QR code lures

A QR code hides the real web address until you have already opened it.

Quishing is phishing that uses a QR code. The code may arrive in an email about a document, on a parking meter sticker, on a restaurant menu, or in a letter that looks like a bill. You scan it and land on a sign-in page or a payment page that is not the company it imitates.

Do not scan a code that was pasted over another code. Type the company’s address yourself, or use the application you already installed. If you must scan a code from a business you are standing inside, check the address that opens before you enter a password or a card number.

Words in this chapter

Quishing. Phishing that uses a QR code. The square code hides the real web address until you have already opened it.

CHAPTER 07

Last reviewed: October 10, 2026

Marketplace, ticket, and rental scams

A deal on a listing site is not finished until the money is in an account you control, or you are holding the item.

On a marketplace, a buyer sends a screenshot of a payment that is not in your account and asks you to ship, or to pay a courier with gift cards. A seller of tickets, a car, a puppy, or a vacation rental asks you to pay by wire, gift card, or cryptocurrency before you have seen the thing. The price is unusually good, and they want the deal closed today.

A screenshot is not a payment. Check the payment application yourself. For a rental, be wary of a host who will not meet, will not do a video walk-through, or pushes you off the listing site to pay. For tickets, buy from the venue or a seller you can reverse a card charge with. If the payment method cannot be reversed, treat that as the warning.

Words in this chapter

Marketplace scam. A fake buyer or seller on a listing site who uses a payment screenshot, a wire, gift cards, or cryptocurrency so you ship goods or pay before anything is real.