Blog: security, scams, and phone spam
Content from the NoCall team to understand real threats, spot patterns, and make informed decisions.

Prefixes 803, 806, 807 and 905: why they cost so much
We explain which premium-rate prefixes cost money in Spain, why scammers use them and how to avoid surprise charges on your phone.

Calls that ring once and hang up: the wangiri scam
You get a missed call from an odd number and you're tempted to return it. We explain what wangiri fraud is and why you should never do it.

Robinson List or app blocking: which suits you
The Robinson List and app blocking fight nuisance calls in different ways. We explain how they differ and why it pays to use both.

The fake tech support scam: Microsoft, Apple and your provider
They call you, or a warning appears saying your computer is infected. We explain how the fake tech support scam works and how not to fall for it.

"I'm calling from your electricity company": the fake supplier scam
Learn to recognise calls from fake energy salespeople who ask for your CUPS and IBAN, and find out how to verify them and protect yourself from this fraud.

"You've won a prize": fake prizes and trick surveys over the phone
The surprise-prize hook and trick surveys are after your card or your data. Learn to recognise the signs and to cut the call off in time.

How to identify a spam call: the signs that give it away
Learn to recognise the signs that give away telemarketing, scams and robocalls, and how to check a number before calling back.

How and where to report a scam or fraudulent call in Spain
A practical guide to reporting a phone scam: INCIBE 017, the National Police, the Guardia Civil and the AEPD, what evidence to gather and how to protect your money.

How to block spam calls on iPhone: a step-by-step guide
Learn how to block contacts, turn on "Silence Unknown Callers" and use caller-ID apps on your iPhone to stop spam calls for good.