Vabljeni na 40. Bitcoin Ljubljana Meetup! Ta mesec bomo imeli v Četrtek 10.4.2025 ob 19h v kavarni Sputnik zanimivo srečanje. Pridružil se nam bo Tadej Hren iz Nacionalnega odzivnega centra za kibernetsko varnost SI-CERT.
Skupaj bomo obravnavali vedno bolj perečo tematiko – zlorabe v svetu kriptovalut.
Kriptodenarnice so zelo priljubljena tarča kiberkrimilacev, saj jim omogočajo precej enostavno monetizacijo vdora, po drugi strani pa jim že sama tehnologija omogoča veliko mero anonimnosti in s tem zaščite pred organi pregona. Transakcije v svetu kriptovalut so nepovratne, tako da je verjetnost povrnitve ukradenih sredstev izredno majhna. Zato je zelo pomembno, da se dostop do kriptodenarnic zaščiti v največji možni meri, pri tem pa je dobro poznati tako tehnologijo kot trike napadalcev.
Na predavanju si bomo pogledali najpogostejše načine, kako pride do zlorabe kriptodenarnic, ter preverili, kakšne možnosti zaščite so nam na voljo. Predstavili bomo tudi najpogostejše spletne prevare, ki vsebujejo elemente kriptovalut, in ciljajo predvsem tehnološko manj vešče uporabnike.
Kdo je Tadej Hren:
Tadej Hren je vodja oddelka za obravnavo omrežnih incidentov pri Nacionalnem odzivnem centru za kibernetsko varnost SI-CERT v Sloveniji. SI-CERT (Slovenian Computer Emergency Response Team) je organizacija, ki deluje pod okriljem javnega zavoda Arnes in je odgovorna za koordinacijo razreševanja kibernetskih incidentov, tehnično svetovanje ob vdorih ter ozaveščanje o spletni varnosti. Hren je izkušen strokovnjak za omrežno in informacijsko varnost z več kot 20 leti izkušenj na tem področju.
Aktivno sodeluje pri preiskavah kibernetskih napadov, vključno z vdori v sisteme slovenskih podjetij, kjer je večkrat pomagal policiji pri kriminalističnih preiskavah. Med drugim je sodeloval pri analizi zlonamerne kode in preiskavah botnetov, za kar je prejel priznanje FBI. Redno predava na strokovnih in javnih dogodkih, kjer deli znanje o kibernetskih grožnjah, kot so izsiljevalski virusi, spletne prevare in druge zlorabe. Njegovo delo vključuje tudi praktično ukrepanje, kot je razkrivanje ranljivosti in pomoč pri zaščiti pred njimi.
Je cenjen strokovnjak v Sloveniji, ki s svojo ekipo prispeva k dvigu ravni kibernetske varnosti v državi, hkrati pa poudarja pomen ozaveščanja uporabnikov kot ključnega elementa obrambe pred digitalnimi grožnjami.
Če nas želite podpreti in omogočiti prihodnje dogodke na temo Bitcoina, lahko donirate tukaj prav tako se lahko včlanite v društvo in z članarino podprete naša prizadevanja.
Več o bitcoinu si lahko preberete tudi na BITCOIN.SI ali slovenskem delu EUROPEAN BITCOINERS.
*****
Security in the World of crypto and bitcoin- Tadej HREN, SI-CERT
This month, we will host an interesting event on Thursday, April 10, 2025, at 7:00 PM at Sputnik Café. Tadej Hren from the National Cyber Security Incident Response Center SI-CERT in Slovenia will dive in to the security of the crypto world.
Together, we will address an increasingly pressing topic—abuses in the world of cryptocurrencies.
Cryptocurrency wallets are a highly popular target for cybercriminals, as they provide a relatively easy way to monetize breaches, while the technology itself offers a significant degree of anonymity, shielding perpetrators from law enforcement. Transactions in the crypto world are irreversible, meaning the likelihood of recovering stolen funds is extremely low. Therefore, it is crucial to secure access to crypto wallets to the greatest extent possible, while also understanding both the technology and the tactics used by attackers.
During the lecture, we will explore the most common methods by which wallets are compromised and examine the available protection options. We will also highlight the most frequent online scams involving cryptocurrencies, which primarily target less tech-savvy users.
Who is Tadej Hren?
Tadej Hren is the head of the Network Incident Response Department at the National Cyber Security Incident Response Center SI-CERT in Slovenia. SI-CERT (Slovenian Computer Emergency Response Team) operates under the public institute Arnes and is responsible for coordinating the resolution of cybersecurity incidents, providing technical advice during breaches, and raising awareness about online safety.
Hren is an experienced expert in network and information security with over 20 years of experience in the field. He actively participates in investigations of cyber attacks, including breaches into the systems of Slovenian companies, where he has repeatedly assisted police in criminal investigations. Among other achievements, he has contributed to the analysis of malicious code and botnet investigations, earning recognition from the FBI. He regularly speaks at professional and public events, sharing knowledge about cyber threats such as ransomware, online scams, and other abuses. His work also involves practical efforts, such as identifying vulnerabilities and helping to protect against them.
Hren is a respected expert in Slovenia, contributing with his team to raising the level of cybersecurity in the country, while emphasizing the importance of user awareness as a key element in defending against digital threats.
📅 Thursday, April 10, 2025
🕔 Time: 7:00 PM – 9:00 PM CEST
📍 Sputnik Galerija
Tržaška c. 128 · Ljubljana
✨ Bitcoin Ljubljana connects people with interest in Bitcoin and Lightning Network through monthly meetups with short presentations and long discussions about all things Bitcoin.