📢 Call for Papers deadline: January 31, 2027
Last verified: October 28, 2026 · how we verify
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Billed as the largest BSides in the Balkans, Security BSides Sofia 2027 is a community information security conference taking place in the Bulgarian capital from 26 to 28 March 2027. It follows the international Security BSides model, offering an open, practitioner-focused event for security engineers, penetration testers, researchers, students and technology professionals from across the region. Its regional scale is what makes it notable. Where many BSides events run for a single day, the Sofia edition spans three days, giving room for a broader programme and drawing attendees from neighbouring countries as well as from Bulgaria's own active technology sector. For many in South-East Europe, this cybersecurity conference in Sofia in 2027 is a convenient alternative to travelling to larger Western European events. Attendees can expect community-driven talks covering both offensive and defensive security, along with extended opportunities to network over the three days. The format encourages exchange between experienced professionals and those just starting out, and it helps build ties between security communities across the Balkans. As a flagship gathering for the region, Security BSides Sofia plays an important role in growing local expertise and connecting it to the wider international security community.
Security BSides Sofia 2027 takes place March 26–28, 2027 in Sofia, Bulgaria.
Security BSides Sofia 2027 is an in-person event.
The Call for Papers is open — submissions close on January 31, 2027.
Travel questions? See Good to know in the travel guide below.
Security BSides Sofia runs from Friday 26 to Sunday 28 March, a weekend-length event that gives attendees time to see a capital most western visitors underestimate. Late March brings the first proper spring days, while the summit of Vitosha, which looms directly over the southern suburbs, often keeps its snow. Sofia layers Roman ruins, Ottoman mosques, Orthodox churches and socialist-era boulevards within a compact centre, and its tech community has grown quickly, which explains the strong local turnout at events like this one.
Vasil Levski Sofia Airport (SOF) is only about 10 km east of the centre. The metro runs from Terminal 2 into central Sofia in around 20 to 25 minutes, and a free shuttle links the two terminals. Licensed taxis take roughly 20 minutes; use the official desk or an app rather than drivers who approach you. Long-distance buses connect Sofia with Thessaloniki, Belgrade and Bucharest.
Skip the taxi queue — pre-book a fixed-price airport transfer with Kiwitaxi. Exploring beyond the city? compare rental cars on EconomyBookings.
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Bulgaria is covered by EU roaming rules, so many European travellers can use their normal plan. For everyone else, a local eSIM avoids expensive data charges. Set up an eSIM with Airalo before you board and you're online the moment you land.
Boyana Church. A small medieval church at the foot of Vitosha, listed by UNESCO for its thirteenth-century frescoes, which predate much of the Italian Renaissance. Visits are timed and limited to a few minutes inside to protect the paintings. Allow ninety minutes including the taxi ride from the centre, and combine it with the National Museum of History nearby.
Vitosha Nature Park. The mountain on Sofia's doorstep can be reached by bus or taxi within an hour. In late March expect snow at higher elevations and slushy lower trails, so waterproof boots are essential. The Golden Bridges stone river is a straightforward half-day outing; check conditions before going, because spring weather changes quickly.
Serdica Archaeological Complex. Remains of the Roman city of Serdica lie exposed beneath glass and in the open around Serdika metro station, right in the centre. Streets, foundations and baths sit between modern buildings. It is free and takes about thirty minutes, and the nearby Rotunda of St George is among the oldest buildings in the city.
What currency is used in Bulgaria?
Bulgaria adopted the euro on 1 January 2026. Cards are widely accepted in the centre, though small market stalls may still prefer cash.
How do I get from the airport?
Take the metro from Terminal 2 or a licensed taxi from the official rank. Both reach the centre in roughly 20 to 25 minutes.
Travel notes written for Security BSides Sofia 2027 attendees. Links marked above are affiliate links — we may earn a commission at no cost to you. Verify schedules and opening hours on official websites before you travel.
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