The Professional Cryptography Codex is now fully published, Modules 0 to 6.
A free, hands-on course that takes you from the fundamentals to modern cryptography. Everything in one place.
With hands-on practicals in every module.
#cryptography#Tech#CyberSecurity
I recently used Osintgram during an investigation and found it very useful for Instagram reconnaissance and information gathering.
It surfaced account details and leads worth following up on.
A solid addition to your OSINT toolkit.
#OSINT
Google Dorking: The Complete Course.
This course teaches the actual skill: building precise queries, chaining them across engines, and using them for real investigation, pen test recon, threat intel and defense. Beginner to practitioner, module by module.
#OSINT#CyberSecurity
I learnt the fundamentals of open-source journalism from @BenDoBrown , and his training played a big role in shaping my OSINT journey. For anyone who has admired my investigative work and wondered where to start, this is a great course to get you going!
π’ Ransomware Alert: π§π·
We started monitoring a new ransomware group named "DESTELLO"
MAPFRE (https://t.co/M23IJ4WMC9), a Brazil-based Insurance company, has reportedly fallen victim to DESTELLO ransomware.
π Key Details:
π‘οΈ Threat Actor: DESTELLO
π Reported on: 04/11/26
β οΈ Data Compromised: 9 GB
Verifying a bank or business before you deal with them?
Black Book Online is a free public records directory that points you to official sources for bank lookups, court records, business filings and more.
A useful starting point for #OSINT research and due diligence.
Round 3: Sweden, Europe.
The plates number are blurred, but the blue strip on the left still shows. Most European plates have it.
Also Swedish text on the billboard, Volvo V70, blue P sign, blue round sign, apartment blocks.
Day 2/200 β #200DaysofGEOINT.
I Practice locations clues in Street View.
Round 1: Colombia, South America.
The stop sign reads PARE, used by every South American country. Red-brick apartments, tile roofs and Andean hills support it.
#OSINT
Round 2: Mexico, North America.
The stop sign reads ALTO. Mexico and Central America use ALTO.
Supporting clues: wooden poles with loose cables, a Toyota Tacoma, yellow-painted curbs, and walled concrete houses with metal gates.
How to map out your digital footprint online before attackers do in 2026
I wrote a practical OSINT based guide on how to map your digital footprint and reduce unnecessary exposure.
You might be surprised what the internet still knows about you.
#OSINT#Cybersecurity@ireteeh
Day 1/200 β #200DaysOfGEOINT
Short on time today, so I started with the GeoGuessr daily challenge: 10,536 pts. Round 2 scored 0, but a road sign to Sarreguemines (D35) would have placed it in France.
Lesson: read the signs first. Tomorrow we go harder.
#OSINT
Starting a 200 Day GEOINT Learning Challenge. π
Inspired by Rainbolt video on a 4-year geolocation mystery, I'm building on my experience through daily @geoguessr and real case studies
I already have some experience in #GEOINT, but I want to take it much further.
Follow along
Starting a 200 Day GEOINT Learning Challenge. π
Inspired by Rainbolt video on a 4-year geolocation mystery, I'm building on my experience through daily @geoguessr and real case studies
I already have some experience in #GEOINT, but I want to take it much further.
Follow along
This is one of the best geolocation case videos I've watched so far.
The storyline and the investigative process behind it are fascinating.
If you haven't seen it yet, it's well worth your time.
Great work by @georainbolt π
#OSINT#GEOINT
This is one of the best geolocation case videos I've watched so far.
The storyline and the investigative process behind it are fascinating.
If you haven't seen it yet, it's well worth your time.
Great work by @georainbolt π
#OSINT#GEOINT