Higher than -2.0 security status: no travel restrictions -2.0 or worse: cannot enter 1.0 systems -2.5 or worse: cannot enter 0.9 systems -3.0 or worse: cannot enter 0.8 systems -3.5 or worse: cannot enter 0.7 systems -4.0 or worse: cannot enter 0.6 systems -4.5 or worse: cannot enter 0.5 systems -5.0 or worse: anyone can attack you without Intervention