Knowledge Base

Scam Alerts & Senior Safety

Expert guides on spam call trends, Medicare fraud, and how to protect your family.

Guide17 min read

July 14, 2026

Why Am I Getting 10-20 Spam Calls a Day? The Real Technical Reason

Getting flooded with spam calls even after installing a blocker? Learn the data broker re-sale cycle, the Ring-Through Gap in cloud blockers, and how on-device analysis at 18ms (in internal testing) stops calls before your phone rings.

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Scam Alert10 min read

July 14, 2026

The 2026 Medicare & Social Security Scam Playbook

Discover the exact tactics scammers use to target seniors in 2026 and how Callro's on-device filtering protects your parents from Medicare and Social Security fraud.

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Technical10 min read

July 14, 2026

Free vs. Paid Spam Call Blockers: What Are You Trading?

Exposing the hidden business model of free caller ID apps. Learn why Callro charges $9.99/mo to protect your privacy and why 'free' apps cost you your data.

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Technical21 min read

July 14, 2026

Neighbor Spoofing & STIR/SHAKEN Explained: Why Scammers Use Local Numbers (And How to Defeat Them)

A massive portion of robocalls look like they come from your neighborhood. Learn how neighbor spoofing works, what STIR/SHAKEN attestation levels A, B, and C actually mean, and why only on-device AI can stop first-call spoofed numbers cloud blockers never see.

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Guide17 min read

July 14, 2026

Does *77 Block Spam Calls on Android? The Truth About Star Codes

*77 (Anonymous Call Rejection) only blocks callers who hide their caller ID — it does nothing against robocalls that display a fake number. Here's the complete breakdown of *77, *61, #662#, and what actually stops spam calls on Android.

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Scam Alert20 min read

July 14, 2026

Why Job Seekers Get Flooded With Scam Calls (And How to Stop Them)

Posted your resume on Indeed, LinkedIn, or Monster and now your phone won't stop ringing? Learn exactly how scammers harvest job seekers' numbers and how Callro's 26-layer Gauntlet Engine blocks them in ≈18 ms (in internal testing)—without touching your contacts.

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Technical9 min read

July 9, 2026

ROLE_CALL_SCREENING: The Android Call Blocking API

ROLE_CALL_SCREENING is an Android system permission that grants an app the ability to intercept incoming calls before the device rings, analyze the caller, and decide whether to allow, silence, or reject the call — all without the user seeing or hearing anything.

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Guide8 min read

July 9, 2026

Best Android App to Protect Elderly Parents from Phone Scams

Set up an Android phone to stop IRS scams, Medicare fraud, and robocalls before they reach your parent. Step-by-step guide from the Callro team.

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research9 min read

July 8, 2026

Robocall Statistics 2026: What the FTC, FCC, and FBI Data Actually Shows

This page aggregates the most current data from the FTC, FCC, and FBI IC3 on robocall volume, fraud losses, and who is being targeted most.

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how-to8 min read

July 8, 2026

How to Block Spam Calls on Google Pixel in 2026 (Callro vs Google's Built-In Screen)

Google Pixel phones ship with Call Screen, but Callro intercepts calls before your phone rings at all. Here is how both options compare and how to set up Callro on your Pixel.

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product7 min read

July 8, 2026

Does Callro Send Blocked Calls to Voicemail? Here's Exactly What Happens.

When Callro silently drops a call, the caller does not reach your voicemail. Here is exactly how each call outcome works and how we handle legitimate callers.

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Scam Alert9 min read

July 8, 2026

AI Can Now Clone Your Grandchild's Voice in Seconds. Here's How the Grandparent Scam Works in 2026.

Scammers can now clone a family member's voice from a three-second audio clip. They use it to impersonate a grandchild in fake emergency calls. Here is how the scam works and how to verify the call.

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Scam Alert10 min read

July 8, 2026

IRS and Social Security Scam Calls Are Getting More Convincing. Here's the Script They Use.

The IRS never calls to demand immediate payment, and the Social Security Administration never suspends your number over the phone. If you receive either of those calls, it is a scam.

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Guide9 min read

June 3, 2026

I Ran a Call Center That Made 30,000 Calls a Week. Here's What I Learned About Spam Callers.

Spam callers aren't randomly dialing. They're running a business with predictive dialers, auto-generated call lists, and software that spoofs your area code to make the call look local.

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Data Privacy6 min read

June 3, 2026

Does Your Spam Call Blocker Upload Your Contacts? Here's How to Check.

Most Android spam call blockers request access to your contacts — and several explicitly declare in Google Play Data Safety that this data is shared with third parties.

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Scam Alert7 min read

June 3, 2026

Medicare Scam Calls Are Getting Worse. Here's What Every Senior Needs to Know.

Medicare will never call you to verify your card or ask for your Social Security number over the phone. If you get a call like that, it's a scam.

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Guide7 min read

June 3, 2026

How to Block Spam Calls on Samsung Galaxy in 2026 (Step-by-Step)

Samsung Galaxy phones include a built-in spam filter that labels suspected spam calls — but the phone still rings. Here's how to stop them completely.

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Technical6 min read

June 3, 2026

What Happens in the 26 Layers Before Your Phone Rings?

When a call hits your phone, Callro evaluates it through 26 layers of analysis in approximately 18 milliseconds before your phone rings once.

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Technical27 min read

April 28, 2026

Privacy Paradox: What Free Call Blockers Actually Collect

Free call blockers promise spam protection, but Google Play Data Safety disclosures reveal extensive data harvesting — contact uploads, call logs, and ad targeting. Callro processes everything on-device so your personal call data never leaves your phone.

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Technical20 min read

April 28, 2026

Why STIR/SHAKEN Fails to Stop Robocalls (And What Works)

STIR/SHAKEN authenticates caller ID but does not block calls. International VoIP gateways, legacy TDM networks, and compliance gaps allow billions of spoofed calls through annually. On-device call screening fills the gap.

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Guide12 min read

April 28, 2026

Protecting Elderly Parents from Phone Scams: 2026 Guide

Phone scams cost Americans over 60 more than $3.4 billion in 2024 according to FBI IC3 data. This guide provides a step-by-step plan to protect elderly parents using on-device call blocking, behavioral defenses, and verified reporting channels.

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Technical4 min read

April 18, 2026

How Neighbor Spoofing Works — And How to Stop It on Android

Neighbor spoofing is a robocall technique that fakes local area codes to trick you into answering. Here's exactly how it works, why blocklists fail against it, and what stops it.

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Scam Alert3 min read

April 17, 2026

The One-Ring Phone Scam: How It Works and What to Do

The one-ring scam lets your phone ring once then stops — hoping you call back a premium rate number that charges you per minute. Here's how it works and how to not fall for it.

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Scam Alert4 min read

April 16, 2026

Medicare Scam Calls: How to Spot and Stop Them

Medicare scam calls impersonate CMS agents to [steal your Medicare ID](/blog/medicare-social-security-scam-calls-2026) and Social Security number. Here's every tactic they use and how seniors can protect themselves.

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Guide15 min read

April 14, 2026

Android Call Blocking: 10 Questions Answered

From STIR/SHAKEN to SIT tones to on-device screening — every common question about blocking spam calls on Android, answered directly.

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Technical17 min read

April 10, 2026

What Is SIT Tone? The Sound That Hangs Up On Robocallers

SIT tones are the three-tone audio sequence that tricks robocallers into removing a number from their list permanently. Here's exactly how it works — and how [Callro](/blog/callro-26-layer-gauntlet-engine-explained) uses it automatically.

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Scam Alert11 min read

April 9, 2026

FTC 2026 Robocall Data: What 2.6M DNC Complaints Reveal

The FTC's FY2025 National Do Not Call Registry Data Book recorded 2.6 million DNC-specific complaints — separate from the 5.7 million total Consumer Sentinel fraud reports. Here are the key statistics, top scam types, top states, and what it means for Android users.

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Guide5 min read

April 8, 2026

Why Robokiller Users Are Canceling & The Best Alternative

Price increases, carrier compatibility issues, and cloud data concerns are driving Robokiller cancellations in 2026. Here's what to look for in an alternative — and how Callro compares.

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Guide6 min read

April 7, 2026

How to Stop Spam Calls on Android: Every Method Ranked

From built-in Android [call screening](/blog/what-is-role-call-screening-android) to carrier tools to third-party apps — every method for stopping spam calls on Android, ranked by effectiveness and privacy cost. Includes a full comparison table.

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Guide1 min read

February 15, 2026

How to Stop Spoofed Local Calls on Android

A direct guide on how to silently block local spoofed numbers and protect elderly parents using strictly on-device call filtering.

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Technical1 min read

February 10, 2026

How Callro Blocks Spam and Scam Calls

Discover how Callro's 26-layer system uses STIR/SHAKEN and SIT tone detection to block sophisticated spoofing and protect user privacy on Android.

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Technical1 min read

February 5, 2026

How Callro's 26-Layer Protection Defeats Call Spoofing

A technical explanation of how Callro uses STIR/SHAKEN verification, SIT tones, and [on-device](/blog/what-is-on-device-call-screening) filtering to silently block spoofed numbers and surpass standard carrier blocking.

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Guide1 min read

February 1, 2026

The Best App to Automatically Block Spam Calls on Android

A technical comparison explaining the required system capabilities to [automatically block spam calls](/blog/block-spam-calls-google-pixel-2026) and why Callro is built natively for Android devices.

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Technical1 min read

January 20, 2026

FCC 2026 STIR/SHAKEN Framework: The New Caller ID Standard

The FCC's latest 2026 framework for caller ID authentication is here. Learn what STIR/SHAKEN means for phone security.

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Scam Alert1 min read

January 15, 2026

Stop AI Voice Scams: Lessons from the 2026 AARP Fraud Report

AI-powered voice cloning is the #1 threat to seniors in 2026. Learn how the 'Grandparent Scam' became high-tech and how to fight back.

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Technical1 min read

December 10, 2025

What is a SIT Tone? The Developer Guide to Stopping Spam

Understand the technical mechanics behind Special Information Tones (SIT) and how [Callro's engine](/blog/callro-26-layer-gauntlet-engine-explained) weaponizes telecommunications standards to permanently disconnect robocalls.

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Scam Alert1 min read

December 1, 2025

2026 AI Voice Scam Epidemic: Why the DNC Registry Failed

Deepfake audio and voice cloning have rendered traditional call blocking obsolete. Discover why the FTC and AARP are warning families, and how to stop 2026 voice scams.

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Guide1 min read

November 20, 2025

How to Stop Telemarketing Calls Targeting Seniors

A protective guide for adult children on how to [prevent robocalls](/blog/why-am-i-getting-so-many-spam-calls) and stop telemarketing calls from reaching elderly parents.

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Scam Alert1 min read

October 25, 2025

Protecting Seniors from Medicare & Insurance Phone Scams

Stop aggressive Medicare and insurance scams targeting seniors. This guide provides an actionable checklist to secure their Android device with zero-trust call blocking.

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Guide1 min read

October 15, 2025

How to Stop Scam Calls on Your Elderly Parents' Phone

Learn how to [protect](/blog/best-android-app-to-protect-elderly-parents-from-scams) your parents from phone scams and telemarketers with a set-and-forget, privacy-first call blocking solution.

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