Jitter is variability in latency; high jitter causes stutter in gaming, calls, and interactive apps. A practical tip is to verify behavior after OS updates, since networking defaults and DNS behavior can change unexpectedly. For business users, clear policy and least-privilege access reduce risk more than ‘always route everything everywhere.’ If you travel often, this term becomes especially important because airports, hotels, and cafes are common interception points. VPN Surf and Elite VPN guidance aims to keep the concept actionable, not just theoretical.